Digital Thru mixer element added (device can act as converter optical<->coax)
Signed-off-by: Torsten Schenk torsten.schenk@zoho.com
diff -Nur a/sound/usb/6fire/control.c b/sound/usb/6fire/control.c --- a/sound/usb/6fire/control.c 2011-03-31 21:20:22.000000000 +0200 +++ b/sound/usb/6fire/control.c 2011-04-04 11:30:05.664833001 +0200 @@ -65,6 +65,15 @@ { 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 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 @@ 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 @@ .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 @@ 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 @@ 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 -Nur a/sound/usb/6fire/control.h b/sound/usb/6fire/control.h --- a/sound/usb/6fire/control.h 2011-03-31 21:20:22.000000000 +0200 +++ b/sound/usb/6fire/control.h 2011-04-04 11:30:10.821833002 +0200 @@ -21,12 +21,29 @@ 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 -Nur a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c --- a/sound/usb/6fire/pcm.c 2011-04-04 11:23:10.000000000 +0200 +++ b/sound/usb/6fire/pcm.c 2011-04-04 11:30:15.623833002 +0200 @@ -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 @@ 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 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 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; } }