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authorTorsten Schenk <torsten.schenk@zoho.com>2011-04-04 11:50:53 +0200
committerTakashi Iwai <tiwai@suse.de>2011-04-04 12:26:21 +0200
commit2475b0d407614ea5a41b8325d45c614d94087088 (patch)
tree397aa0eb6ae0f7220992fcd98b6dd86e8271be76 /sound/usb
parentb84610b95f7e7bcd1cd9ecf3e8506a59e9f557fd (diff)
downloadlinux-linaro-precise-2475b0d407614ea5a41b8325d45c614d94087088.tar.gz
ALSA: 6fire - Add support of digital-thru mixer
Digital Thru mixer element added (device can act as converter optical<->coax) Signed-off-by: Torsten Schenk <torsten.schenk@zoho.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
-rw-r--r--sound/usb/6fire/control.c105
-rw-r--r--sound/usb/6fire/control.h17
-rw-r--r--sound/usb/6fire/pcm.c62
3 files changed, 137 insertions, 47 deletions
diff --git a/sound/usb/6fire/control.c b/sound/usb/6fire/control.c
index 24846351118..ac828eff1a6 100644
--- a/sound/usb/6fire/control.c
+++ b/sound/usb/6fire/control.c
@@ -65,6 +65,15 @@ init_data[] = {
{ 0 } /* TERMINATING ENTRY */
};
+static const int rates_altsetting[] = { 1, 1, 2, 2, 3, 3 };
+/* values to write to soundcard register for all samplerates */
+static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01};
+static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00};
+
+enum {
+ DIGITAL_THRU_ONLY_SAMPLERATE = 3
+};
+
static void usb6fire_control_master_vol_update(struct control_runtime *rt)
{
struct comm_runtime *comm_rt = rt->chip->comm;
@@ -95,6 +104,67 @@ static void usb6fire_control_opt_coax_update(struct control_runtime *rt)
}
}
+static int usb6fire_control_set_rate(struct control_runtime *rt, int rate)
+{
+ int ret;
+ struct usb_device *device = rt->chip->dev;
+ struct comm_runtime *comm_rt = rt->chip->comm;
+
+ if (rate < 0 || rate >= CONTROL_N_RATES)
+ return -EINVAL;
+
+ ret = usb_set_interface(device, 1, rates_altsetting[rate]);
+ if (ret < 0)
+ return ret;
+
+ /* set soundcard clock */
+ ret = comm_rt->write16(comm_rt, 0x02, 0x01, rates_6fire_vl[rate],
+ rates_6fire_vh[rate]);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int usb6fire_control_set_channels(
+ struct control_runtime *rt, int n_analog_out,
+ int n_analog_in, bool spdif_out, bool spdif_in)
+{
+ int ret;
+ struct comm_runtime *comm_rt = rt->chip->comm;
+
+ /* enable analog inputs and outputs
+ * (one bit per stereo-channel) */
+ ret = comm_rt->write16(comm_rt, 0x02, 0x02,
+ (1 << (n_analog_out / 2)) - 1,
+ (1 << (n_analog_in / 2)) - 1);
+ if (ret < 0)
+ return ret;
+
+ /* disable digital inputs and outputs */
+ /* TODO: use spdif_x to enable/disable digital channels */
+ ret = comm_rt->write16(comm_rt, 0x02, 0x03, 0x00, 0x00);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int usb6fire_control_streaming_update(struct control_runtime *rt)
+{
+ struct comm_runtime *comm_rt = rt->chip->comm;
+
+ if (comm_rt) {
+ if (!rt->usb_streaming && rt->digital_thru_switch)
+ usb6fire_control_set_rate(rt,
+ DIGITAL_THRU_ONLY_SAMPLERATE);
+ return comm_rt->write16(comm_rt, 0x02, 0x00, 0x00,
+ (rt->usb_streaming ? 0x01 : 0x00) |
+ (rt->digital_thru_switch ? 0x08 : 0x00));
+ }
+ return -EINVAL;
+}
+
static int usb6fire_control_master_vol_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
@@ -195,6 +265,28 @@ static int usb6fire_control_opt_coax_get(struct snd_kcontrol *kcontrol,
return 0;
}
+static int usb6fire_control_digital_thru_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
+ int changed = 0;
+
+ if (rt->digital_thru_switch != ucontrol->value.integer.value[0]) {
+ rt->digital_thru_switch = ucontrol->value.integer.value[0];
+ usb6fire_control_streaming_update(rt);
+ changed = 1;
+ }
+ return changed;
+}
+
+static int usb6fire_control_digital_thru_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
+ ucontrol->value.integer.value[0] = rt->digital_thru_switch;
+ return 0;
+}
+
static struct __devinitdata snd_kcontrol_new elements[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -223,6 +315,15 @@ static struct __devinitdata snd_kcontrol_new elements[] = {
.get = usb6fire_control_opt_coax_get,
.put = usb6fire_control_opt_coax_put
},
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Digital Thru Playback Route",
+ .index = 0,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = snd_ctl_boolean_mono_info,
+ .get = usb6fire_control_digital_thru_get,
+ .put = usb6fire_control_digital_thru_put
+ },
{}
};
@@ -238,6 +339,9 @@ int __devinit usb6fire_control_init(struct sfire_chip *chip)
return -ENOMEM;
rt->chip = chip;
+ rt->update_streaming = usb6fire_control_streaming_update;
+ rt->set_rate = usb6fire_control_set_rate;
+ rt->set_channels = usb6fire_control_set_channels;
i = 0;
while (init_data[i].type) {
@@ -249,6 +353,7 @@ int __devinit usb6fire_control_init(struct sfire_chip *chip)
usb6fire_control_opt_coax_update(rt);
usb6fire_control_line_phono_update(rt);
usb6fire_control_master_vol_update(rt);
+ usb6fire_control_streaming_update(rt);
i = 0;
while (elements[i].name) {
diff --git a/sound/usb/6fire/control.h b/sound/usb/6fire/control.h
index b534c777ab0..8f5aeead2e3 100644
--- a/sound/usb/6fire/control.h
+++ b/sound/usb/6fire/control.h
@@ -21,12 +21,29 @@ enum {
CONTROL_MAX_ELEMENTS = 32
};
+enum {
+ CONTROL_RATE_44KHZ,
+ CONTROL_RATE_48KHZ,
+ CONTROL_RATE_88KHZ,
+ CONTROL_RATE_96KHZ,
+ CONTROL_RATE_176KHZ,
+ CONTROL_RATE_192KHZ,
+ CONTROL_N_RATES
+};
+
struct control_runtime {
+ int (*update_streaming)(struct control_runtime *rt);
+ int (*set_rate)(struct control_runtime *rt, int rate);
+ int (*set_channels)(struct control_runtime *rt, int n_analog_out,
+ int n_analog_in, bool spdif_out, bool spdif_in);
+
struct sfire_chip *chip;
struct snd_kcontrol *element[CONTROL_MAX_ELEMENTS];
bool opt_coax_switch;
bool line_phono_switch;
+ bool digital_thru_switch;
+ bool usb_streaming;
u8 master_vol;
};
diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c
index 7ea698793d4..b137b25865c 100644
--- a/sound/usb/6fire/pcm.c
+++ b/sound/usb/6fire/pcm.c
@@ -17,26 +17,23 @@
#include "pcm.h"
#include "chip.h"
#include "comm.h"
+#include "control.h"
enum {
OUT_N_CHANNELS = 6, IN_N_CHANNELS = 4
};
/* keep next two synced with
- * FW_EP_W_MAX_PACKET_SIZE[] and RATES_MAX_PACKET_SIZE */
+ * FW_EP_W_MAX_PACKET_SIZE[] and RATES_MAX_PACKET_SIZE
+ * and CONTROL_RATE_XXX in control.h */
static const int rates_in_packet_size[] = { 228, 228, 420, 420, 404, 404 };
static const int rates_out_packet_size[] = { 228, 228, 420, 420, 604, 604 };
static const int rates[] = { 44100, 48000, 88200, 96000, 176400, 192000 };
-static const int rates_altsetting[] = { 1, 1, 2, 2, 3, 3 };
static const int rates_alsaid[] = {
SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_48000,
SNDRV_PCM_RATE_88200, SNDRV_PCM_RATE_96000,
SNDRV_PCM_RATE_176400, SNDRV_PCM_RATE_192000 };
-/* values to write to soundcard register for all samplerates */
-static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01};
-static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00};
-
enum { /* settings for pcm */
OUT_EP = 6, IN_EP = 2, MAX_BUFSIZE = 128 * 1024
};
@@ -48,15 +45,6 @@ enum { /* pcm streaming states */
STREAM_STOPPING
};
-enum { /* pcm sample rates (also index into RATES_XXX[]) */
- RATE_44KHZ,
- RATE_48KHZ,
- RATE_88KHZ,
- RATE_96KHZ,
- RATE_176KHZ,
- RATE_192KHZ
-};
-
static const struct snd_pcm_hardware pcm_hw = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
@@ -87,57 +75,34 @@ static const struct snd_pcm_hardware pcm_hw = {
static int usb6fire_pcm_set_rate(struct pcm_runtime *rt)
{
int ret;
- struct usb_device *device = rt->chip->dev;
- struct comm_runtime *comm_rt = rt->chip->comm;
+ struct control_runtime *ctrl_rt = rt->chip->control;
- if (rt->rate >= ARRAY_SIZE(rates))
- return -EINVAL;
- /* disable streaming */
- ret = comm_rt->write16(comm_rt, 0x02, 0x00, 0x00, 0x00);
+ ctrl_rt->usb_streaming = false;
+ ret = ctrl_rt->update_streaming(ctrl_rt);
if (ret < 0) {
snd_printk(KERN_ERR PREFIX "error stopping streaming while "
"setting samplerate %d.\n", rates[rt->rate]);
return ret;
}
- ret = usb_set_interface(device, 1, rates_altsetting[rt->rate]);
- if (ret < 0) {
- snd_printk(KERN_ERR PREFIX "error setting interface "
- "altsetting %d for samplerate %d.\n",
- rates_altsetting[rt->rate], rates[rt->rate]);
- return ret;
- }
-
- /* set soundcard clock */
- ret = comm_rt->write16(comm_rt, 0x02, 0x01, rates_6fire_vl[rt->rate],
- rates_6fire_vh[rt->rate]);
+ ret = ctrl_rt->set_rate(ctrl_rt, rt->rate);
if (ret < 0) {
snd_printk(KERN_ERR PREFIX "error setting samplerate %d.\n",
rates[rt->rate]);
return ret;
}
- /* enable analog inputs and outputs
- * (one bit per stereo-channel) */
- ret = comm_rt->write16(comm_rt, 0x02, 0x02,
- (1 << (OUT_N_CHANNELS / 2)) - 1,
- (1 << (IN_N_CHANNELS / 2)) - 1);
+ ret = ctrl_rt->set_channels(ctrl_rt, OUT_N_CHANNELS, IN_N_CHANNELS,
+ false, false);
if (ret < 0) {
- snd_printk(KERN_ERR PREFIX "error initializing analog channels "
+ snd_printk(KERN_ERR PREFIX "error initializing channels "
"while setting samplerate %d.\n",
rates[rt->rate]);
return ret;
}
- /* disable digital inputs and outputs */
- ret = comm_rt->write16(comm_rt, 0x02, 0x03, 0x00, 0x00);
- if (ret < 0) {
- snd_printk(KERN_ERR PREFIX "error initializing digital "
- "channels while setting samplerate %d.\n",
- rates[rt->rate]);
- return ret;
- }
- ret = comm_rt->write16(comm_rt, 0x02, 0x00, 0x00, 0x01);
+ ctrl_rt->usb_streaming = true;
+ ret = ctrl_rt->update_streaming(ctrl_rt);
if (ret < 0) {
snd_printk(KERN_ERR PREFIX "error starting streaming while "
"setting samplerate %d.\n", rates[rt->rate]);
@@ -168,12 +133,15 @@ static struct pcm_substream *usb6fire_pcm_get_substream(
static void usb6fire_pcm_stream_stop(struct pcm_runtime *rt)
{
int i;
+ struct control_runtime *ctrl_rt = rt->chip->control;
if (rt->stream_state != STREAM_DISABLED) {
for (i = 0; i < PCM_N_URBS; i++) {
usb_kill_urb(&rt->in_urbs[i].instance);
usb_kill_urb(&rt->out_urbs[i].instance);
}
+ ctrl_rt->usb_streaming = false;
+ ctrl_rt->update_streaming(ctrl_rt);
rt->stream_state = STREAM_DISABLED;
}
}