/* Write registers. These are defined as byte-offsets from the iobase value.
*/
#define HDSP_resetPointer 0
+#define HDSP_freqReg 0
#define HDSP_outputBufferAddress 32
#define HDSP_inputBufferAddress 36
#define HDSP_controlRegister 64
#define HDSP_Frequency128KHz (HDSP_QuadSpeed|HDSP_DoubleSpeed|HDSP_Frequency0)
#define HDSP_Frequency176_4KHz (HDSP_QuadSpeed|HDSP_DoubleSpeed|HDSP_Frequency1)
#define HDSP_Frequency192KHz (HDSP_QuadSpeed|HDSP_DoubleSpeed|HDSP_Frequency1|HDSP_Frequency0)
+/* RME says n = 104857600000000, but in the windows MADI driver, I see:
+ return 104857600000000 / rate; // 100 MHz
+ return 110100480000000 / rate; // 105 MHz
+*/
+#define DDS_NUMERATOR 104857600000000ULL; /* = 2^20 * 10^8 */
#define hdsp_encode_latency(x) (((x)<<1) & HDSP_LatencyMask)
#define hdsp_decode_latency(x) (((x) & HDSP_LatencyMask)>>1)
struct pci_dev *pci;
struct snd_kcontrol *spdif_ctl;
unsigned short mixer_matrix[HDSP_MATRIX_MIXER_SIZE];
+ unsigned int dds_value; /* last value written to freq register */
};
/* These tables map the ALSA channels 1..N to the channels that we
return (64 * out) + (32 + (in));
case 0x96:
case 0x97:
+ case 0x98:
return (32 * out) + (16 + (in));
default:
return (52 * out) + (26 + (in));
return (64 * out) + in;
case 0x96:
case 0x97:
+ case 0x98:
return (32 * out) + in;
default:
return (52 * out) + in;
static void hdsp_reset_hw_pointer(struct hdsp *hdsp)
{
hdsp_write (hdsp, HDSP_resetPointer, 0);
+ if (hdsp->io_type == H9632 && hdsp->firmware_rev >= 152)
+ /* HDSP_resetPointer = HDSP_freqReg, which is strange and
+ * requires (?) to write again DDS value after a reset pointer
+ * (at least, it works like this) */
+ hdsp_write (hdsp, HDSP_freqReg, hdsp->dds_value);
}
static void hdsp_start_audio(struct hdsp *s)
return 0;
}
+static void hdsp_set_dds_value(struct hdsp *hdsp, int rate)
+{
+ u64 n;
+ u32 r;
+
+ if (rate >= 112000)
+ rate /= 4;
+ else if (rate >= 56000)
+ rate /= 2;
+
+ n = DDS_NUMERATOR;
+ div64_32(&n, rate, &r);
+ /* n should be less than 2^32 for being written to FREQ register */
+ snd_assert((n >> 32) == 0);
+ /* HDSP_freqReg and HDSP_resetPointer are the same, so keep the DDS
+ value to write it after a reset */
+ hdsp->dds_value = n;
+ hdsp_write(hdsp, HDSP_freqReg, hdsp->dds_value);
+}
+
static int hdsp_set_rate(struct hdsp *hdsp, int rate, int called_internally)
{
int reject_if_open = 0;
hdsp->control_register |= rate_bits;
hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
+ /* For HDSP9632 rev 152, need to set DDS value in FREQ register */
+ if (hdsp->io_type == H9632 && hdsp->firmware_rev >= 152)
+ hdsp_set_dds_value(hdsp, rate);
+
if (rate >= 128000) {
hdsp->channel_map = channel_map_H9632_qs;
} else if (rate > 48000) {
return 0;
}
+#define HDSP_DDS_OFFSET(xname, xindex) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
+ .name = xname, \
+ .index = xindex, \
+ .info = snd_hdsp_info_dds_offset, \
+ .get = snd_hdsp_get_dds_offset, \
+ .put = snd_hdsp_put_dds_offset \
+}
+
+static int hdsp_dds_offset(struct hdsp *hdsp)
+{
+ u64 n;
+ u32 r;
+ unsigned int dds_value = hdsp->dds_value;
+ int system_sample_rate = hdsp->system_sample_rate;
+
+ n = DDS_NUMERATOR;
+ /*
+ * dds_value = n / rate
+ * rate = n / dds_value
+ */
+ div64_32(&n, dds_value, &r);
+ if (system_sample_rate >= 112000)
+ n *= 4;
+ else if (system_sample_rate >= 56000)
+ n *= 2;
+ return ((int)n) - system_sample_rate;
+}
+
+static int hdsp_set_dds_offset(struct hdsp *hdsp, int offset_hz)
+{
+ int rate = hdsp->system_sample_rate + offset_hz;
+ hdsp_set_dds_value(hdsp, rate);
+ return 0;
+}
+
+static int snd_hdsp_info_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = -5000;
+ uinfo->value.integer.max = 5000;
+ return 0;
+}
+
+static int snd_hdsp_get_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+ struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.enumerated.item[0] = hdsp_dds_offset(hdsp);
+ return 0;
+}
+
+static int snd_hdsp_put_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+ struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
+ int change;
+ int val;
+
+ if (!snd_hdsp_use_is_exclusive(hdsp))
+ return -EBUSY;
+ val = ucontrol->value.enumerated.item[0];
+ spin_lock_irq(&hdsp->lock);
+ if (val != hdsp_dds_offset(hdsp))
+ change = (hdsp_set_dds_offset(hdsp, val) == 0) ? 1 : 0;
+ else
+ change = 0;
+ spin_unlock_irq(&hdsp->lock);
+ return change;
+}
+
static struct snd_kcontrol_new snd_hdsp_9632_controls[] = {
HDSP_DA_GAIN("DA Gain", 0),
HDSP_AD_GAIN("AD Gain", 0),
HDSP_PHONE_GAIN("Phones Gain", 0),
-HDSP_XLR_BREAKOUT_CABLE("XLR Breakout Cable", 0)
+HDSP_XLR_BREAKOUT_CABLE("XLR Breakout Cable", 0),
+HDSP_DDS_OFFSET("DDS Sample Rate Offset", 0)
};
static struct snd_kcontrol_new snd_hdsp_controls[] = {
/* Align to bus-space 64K boundary */
- cb_bus = (hdsp->capture_dma_buf.addr + 0xFFFF) & ~0xFFFFl;
- pb_bus = (hdsp->playback_dma_buf.addr + 0xFFFF) & ~0xFFFFl;
+ cb_bus = ALIGN(hdsp->capture_dma_buf.addr, 0x10000ul);
+ pb_bus = ALIGN(hdsp->playback_dma_buf.addr, 0x10000ul);
/* Tell the card where it is */
snd_hdsp_midi_input_read (&hdsp->midi[1]);
}
-static irqreturn_t snd_hdsp_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t snd_hdsp_interrupt(int irq, void *dev_id)
{
struct hdsp *hdsp = (struct hdsp *) dev_id;
unsigned int status;
else
runtime->status->hw_ptr = 0;
if (other) {
- struct list_head *pos;
struct snd_pcm_substream *s;
struct snd_pcm_runtime *oruntime = other->runtime;
- snd_pcm_group_for_each(pos, substream) {
- s = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s, substream) {
if (s == other) {
oruntime->status->hw_ptr = runtime->status->hw_ptr;
break;
other = hdsp->playback_substream;
if (other) {
- struct list_head *pos;
struct snd_pcm_substream *s;
- snd_pcm_group_for_each(pos, substream) {
- s = snd_pcm_group_substream_entry(pos);
+ snd_pcm_group_for_each_entry(s, substream) {
if (s == other) {
snd_pcm_trigger_done(s, substream);
if (cmd == SNDRV_PCM_TRIGGER_START)
return -EBUSY;
}
- if (request_irq(pci->irq, snd_hdsp_interrupt, IRQF_DISABLED|IRQF_SHARED, "hdsp", (void *)hdsp)) {
+ if (request_irq(pci->irq, snd_hdsp_interrupt, IRQF_SHARED,
+ "hdsp", hdsp)) {
snd_printk(KERN_ERR "Hammerfall-DSP: unable to use IRQ %d\n", pci->irq);
return -EBUSY;
}
hdsp->irq = pci->irq;
- hdsp->precise_ptr = 1;
+ hdsp->precise_ptr = 0;
hdsp->use_midi_tasklet = 1;
+ hdsp->dds_value = 0;
if ((err = snd_hdsp_initialize_memory(hdsp)) < 0)
return err;
projects / deliverable / linux.git / blobdiff