Merge branch 'topic/snd_card_new-err' into for-linus
[safe/jmp/linux-2.6] / sound / usb / usbaudio.c
index 5aa5fe6..8f3cdb3 100644 (file)
  */
 
 
-#include <sound/driver.h>
 #include <linux/bitops.h>
 #include <linux/init.h>
-#include <linux/interrupt.h>
 #include <linux/list.h>
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/usb.h>
 #include <linux/vmalloc.h>
 #include <linux/moduleparam.h>
+#include <linux/mutex.h>
 #include <sound/core.h>
 #include <sound/info.h>
 #include <sound/pcm.h>
@@ -65,11 +64,14 @@ MODULE_SUPPORTED_DEVICE("{{Generic,USB Audio}}");
 
 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] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
-static int vid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; /* Vendor ID for this card */
-static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; /* Product ID for this card */
-static int nrpacks = 4;                /* max. number of packets per urb */
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;/* Enable this card */
+/* Vendor/product IDs for this card */
+static int vid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 };
+static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 };
+static int nrpacks = 8;                /* max. number of packets per urb */
 static int async_unlink = 1;
+static int device_setup[SNDRV_CARDS]; /* device parameter for this card*/
+static int ignore_ctl_error;
 
 module_param_array(index, int, NULL, 0444);
 MODULE_PARM_DESC(index, "Index value for the USB audio adapter.");
@@ -85,7 +87,11 @@ module_param(nrpacks, int, 0644);
 MODULE_PARM_DESC(nrpacks, "Max. number of packets per URB.");
 module_param(async_unlink, bool, 0444);
 MODULE_PARM_DESC(async_unlink, "Use async unlink mode.");
-
+module_param_array(device_setup, int, NULL, 0444);
+MODULE_PARM_DESC(device_setup, "Specific device setup (if needed).");
+module_param(ignore_ctl_error, bool, 0444);
+MODULE_PARM_DESC(ignore_ctl_error,
+                "Ignore errors from USB controller for mixer interfaces.");
 
 /*
  * debug the h/w constraints
@@ -97,16 +103,12 @@ MODULE_PARM_DESC(async_unlink, "Use async unlink mode.");
  *
  */
 
-#define MAX_PACKS      10
+#define MAX_PACKS      20
 #define MAX_PACKS_HS   (MAX_PACKS * 8) /* in high speed mode */
 #define MAX_URBS       8
 #define SYNC_URBS      4       /* always four urbs for sync */
 #define MIN_PACKS_URB  1       /* minimum 1 packet per urb */
 
-typedef struct snd_usb_substream snd_usb_substream_t;
-typedef struct snd_usb_stream snd_usb_stream_t;
-typedef struct snd_urb_ctx snd_urb_ctx_t;
-
 struct audioformat {
        struct list_head list;
        snd_pcm_format_t format;        /* format type */
@@ -126,25 +128,27 @@ struct audioformat {
        unsigned int *rate_table;       /* rate table */
 };
 
+struct snd_usb_substream;
+
 struct snd_urb_ctx {
        struct urb *urb;
        unsigned int buffer_size;       /* size of data buffer, if data URB */
-       snd_usb_substream_t *subs;
+       struct snd_usb_substream *subs;
        int index;      /* index for urb array */
        int packets;    /* number of packets per urb */
 };
 
 struct snd_urb_ops {
-       int (*prepare)(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime, struct urb *u);
-       int (*retire)(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime, struct urb *u);
-       int (*prepare_sync)(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime, struct urb *u);
-       int (*retire_sync)(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime, struct urb *u);
+       int (*prepare)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u);
+       int (*retire)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u);
+       int (*prepare_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u);
+       int (*retire_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u);
 };
 
 struct snd_usb_substream {
-       snd_usb_stream_t *stream;
+       struct snd_usb_stream *stream;
        struct usb_device *dev;
-       snd_pcm_substream_t *pcm_substream;
+       struct snd_pcm_substream *pcm_substream;
        int direction;  /* playback or capture */
        int interface;  /* current interface */
        int endpoint;   /* assigned endpoint */
@@ -176,27 +180,27 @@ struct snd_usb_substream {
        unsigned long unlink_mask;      /* bitmask of unlinked urbs */
 
        unsigned int nurbs;                     /* # urbs */
-       snd_urb_ctx_t dataurb[MAX_URBS];        /* data urb table */
-       snd_urb_ctx_t syncurb[SYNC_URBS];       /* sync urb table */
+       struct snd_urb_ctx dataurb[MAX_URBS];   /* data urb table */
+       struct snd_urb_ctx syncurb[SYNC_URBS];  /* sync urb table */
        char *syncbuf;                          /* sync buffer for all sync URBs */
        dma_addr_t sync_dma;                    /* DMA address of syncbuf */
 
        u64 formats;                    /* format bitmasks (all or'ed) */
        unsigned int num_formats;               /* number of supported audio formats (list) */
        struct list_head fmt_list;      /* format list */
+       struct snd_pcm_hw_constraint_list rate_list;    /* limited rates */
        spinlock_t lock;
-       struct tasklet_struct start_period_elapsed;     /* for start trigger */
 
        struct snd_urb_ops ops;         /* callbacks (must be filled at init) */
 };
 
 
 struct snd_usb_stream {
-       snd_usb_audio_t *chip;
-       snd_pcm_t *pcm;
+       struct snd_usb_audio *chip;
+       struct snd_pcm *pcm;
        int pcm_index;
        unsigned int fmt_type;          /* USB audio format type (1-3) */
-       snd_usb_substream_t substream[2];
+       struct snd_usb_substream substream[2];
        struct list_head list;
 };
 
@@ -206,8 +210,8 @@ struct snd_usb_stream {
  * the all interfaces on the same card as one sound device.
  */
 
-static DECLARE_MUTEX(register_mutex);
-static snd_usb_audio_t *usb_chip[SNDRV_CARDS];
+static DEFINE_MUTEX(register_mutex);
+static struct snd_usb_audio *usb_chip[SNDRV_CARDS];
 
 
 /*
@@ -247,12 +251,12 @@ static inline unsigned get_high_speed_hz(unsigned int usb_rate)
  * fill the length and offset of each urb descriptor.
  * the fixed 10.14 frequency is passed through the pipe.
  */
-static int prepare_capture_sync_urb(snd_usb_substream_t *subs,
-                                   snd_pcm_runtime_t *runtime,
+static int prepare_capture_sync_urb(struct snd_usb_substream *subs,
+                                   struct snd_pcm_runtime *runtime,
                                    struct urb *urb)
 {
        unsigned char *cp = urb->transfer_buffer;
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+       struct snd_urb_ctx *ctx = urb->context;
 
        urb->dev = ctx->subs->dev; /* we need to set this at each time */
        urb->iso_frame_desc[0].length = 3;
@@ -269,12 +273,12 @@ static int prepare_capture_sync_urb(snd_usb_substream_t *subs,
  * fill the length and offset of each urb descriptor.
  * the fixed 12.13 frequency is passed as 16.16 through the pipe.
  */
-static int prepare_capture_sync_urb_hs(snd_usb_substream_t *subs,
-                                      snd_pcm_runtime_t *runtime,
+static int prepare_capture_sync_urb_hs(struct snd_usb_substream *subs,
+                                      struct snd_pcm_runtime *runtime,
                                       struct urb *urb)
 {
        unsigned char *cp = urb->transfer_buffer;
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+       struct snd_urb_ctx *ctx = urb->context;
 
        urb->dev = ctx->subs->dev; /* we need to set this at each time */
        urb->iso_frame_desc[0].length = 4;
@@ -290,8 +294,8 @@ static int prepare_capture_sync_urb_hs(snd_usb_substream_t *subs,
  * process after capture sync complete
  * - nothing to do
  */
-static int retire_capture_sync_urb(snd_usb_substream_t *subs,
-                                  snd_pcm_runtime_t *runtime,
+static int retire_capture_sync_urb(struct snd_usb_substream *subs,
+                                  struct snd_pcm_runtime *runtime,
                                   struct urb *urb)
 {
        return 0;
@@ -307,12 +311,12 @@ static int retire_capture_sync_urb(snd_usb_substream_t *subs,
  * write onto the pcm buffer directly...  the data is thus copied
  * later at complete callback to the global buffer.
  */
-static int prepare_capture_urb(snd_usb_substream_t *subs,
-                              snd_pcm_runtime_t *runtime,
+static int prepare_capture_urb(struct snd_usb_substream *subs,
+                              struct snd_pcm_runtime *runtime,
                               struct urb *urb)
 {
        int i, offs;
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+       struct snd_urb_ctx *ctx = urb->context;
 
        offs = 0;
        urb->dev = ctx->subs->dev; /* we need to set this at each time */
@@ -323,16 +327,6 @@ static int prepare_capture_urb(snd_usb_substream_t *subs,
        }
        urb->transfer_buffer_length = offs;
        urb->number_of_packets = ctx->packets;
-#if 0 // for check
-       if (! urb->bandwidth) {
-               int bustime;
-               bustime = usb_check_bandwidth(urb->dev, urb);
-               if (bustime < 0)
-                       return bustime;
-               printk("urb %d: bandwidth = %d (packets = %d)\n", ctx->index, bustime, urb->number_of_packets);
-               usb_claim_bandwidth(urb->dev, urb, bustime, 1);
-       }
-#endif // for check
        return 0;
 }
 
@@ -342,8 +336,8 @@ static int prepare_capture_urb(snd_usb_substream_t *subs,
  * copy the data from each desctiptor to the pcm buffer, and
  * update the current position.
  */
-static int retire_capture_urb(snd_usb_substream_t *subs,
-                             snd_pcm_runtime_t *runtime,
+static int retire_capture_urb(struct snd_usb_substream *subs,
+                             struct snd_pcm_runtime *runtime,
                              struct urb *urb)
 {
        unsigned long flags;
@@ -390,6 +384,16 @@ static int retire_capture_urb(snd_usb_substream_t *subs,
        return 0;
 }
 
+/*
+ * Process after capture complete when paused.  Nothing to do.
+ */
+static int retire_paused_capture_urb(struct snd_usb_substream *subs,
+                                    struct snd_pcm_runtime *runtime,
+                                    struct urb *urb)
+{
+       return 0;
+}
+
 
 /*
  * prepare urb for full speed playback sync pipe
@@ -397,11 +401,11 @@ static int retire_capture_urb(snd_usb_substream_t *subs,
  * set up the offset and length to receive the current frequency.
  */
 
-static int prepare_playback_sync_urb(snd_usb_substream_t *subs,
-                                    snd_pcm_runtime_t *runtime,
+static int prepare_playback_sync_urb(struct snd_usb_substream *subs,
+                                    struct snd_pcm_runtime *runtime,
                                     struct urb *urb)
 {
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+       struct snd_urb_ctx *ctx = urb->context;
 
        urb->dev = ctx->subs->dev; /* we need to set this at each time */
        urb->iso_frame_desc[0].length = 3;
@@ -415,11 +419,11 @@ static int prepare_playback_sync_urb(snd_usb_substream_t *subs,
  * set up the offset and length to receive the current frequency.
  */
 
-static int prepare_playback_sync_urb_hs(snd_usb_substream_t *subs,
-                                       snd_pcm_runtime_t *runtime,
+static int prepare_playback_sync_urb_hs(struct snd_usb_substream *subs,
+                                       struct snd_pcm_runtime *runtime,
                                        struct urb *urb)
 {
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+       struct snd_urb_ctx *ctx = urb->context;
 
        urb->dev = ctx->subs->dev; /* we need to set this at each time */
        urb->iso_frame_desc[0].length = 4;
@@ -433,8 +437,8 @@ static int prepare_playback_sync_urb_hs(snd_usb_substream_t *subs,
  * retrieve the current 10.14 frequency from pipe, and set it.
  * the value is referred in prepare_playback_urb().
  */
-static int retire_playback_sync_urb(snd_usb_substream_t *subs,
-                                   snd_pcm_runtime_t *runtime,
+static int retire_playback_sync_urb(struct snd_usb_substream *subs,
+                                   struct snd_pcm_runtime *runtime,
                                    struct urb *urb)
 {
        unsigned int f;
@@ -459,8 +463,8 @@ static int retire_playback_sync_urb(snd_usb_substream_t *subs,
  * retrieve the current 12.13 frequency from pipe, and set it.
  * the value is referred in prepare_playback_urb().
  */
-static int retire_playback_sync_urb_hs(snd_usb_substream_t *subs,
-                                      snd_pcm_runtime_t *runtime,
+static int retire_playback_sync_urb_hs(struct snd_usb_substream *subs,
+                                      struct snd_pcm_runtime *runtime,
                                       struct urb *urb)
 {
        unsigned int f;
@@ -480,6 +484,74 @@ static int retire_playback_sync_urb_hs(snd_usb_substream_t *subs,
 }
 
 /*
+ * process after E-Mu 0202/0404/Tracker Pre high speed playback sync complete
+ *
+ * These devices return the number of samples per packet instead of the number
+ * of samples per microframe.
+ */
+static int retire_playback_sync_urb_hs_emu(struct snd_usb_substream *subs,
+                                          struct snd_pcm_runtime *runtime,
+                                          struct urb *urb)
+{
+       unsigned int f;
+       unsigned long flags;
+
+       if (urb->iso_frame_desc[0].status == 0 &&
+           urb->iso_frame_desc[0].actual_length == 4) {
+               f = combine_quad((u8*)urb->transfer_buffer) & 0x0fffffff;
+               f >>= subs->datainterval;
+               if (f >= subs->freqn - subs->freqn / 8 && f <= subs->freqmax) {
+                       spin_lock_irqsave(&subs->lock, flags);
+                       subs->freqm = f;
+                       spin_unlock_irqrestore(&subs->lock, flags);
+               }
+       }
+
+       return 0;
+}
+
+/* determine the number of frames in the next packet */
+static int snd_usb_audio_next_packet_size(struct snd_usb_substream *subs)
+{
+       if (subs->fill_max)
+               return subs->maxframesize;
+       else {
+               subs->phase = (subs->phase & 0xffff)
+                       + (subs->freqm << subs->datainterval);
+               return min(subs->phase >> 16, subs->maxframesize);
+       }
+}
+
+/*
+ * Prepare urb for streaming before playback starts or when paused.
+ *
+ * We don't have any data, so we send a frame of silence.
+ */
+static int prepare_nodata_playback_urb(struct snd_usb_substream *subs,
+                                      struct snd_pcm_runtime *runtime,
+                                      struct urb *urb)
+{
+       unsigned int i, offs, counts;
+       struct snd_urb_ctx *ctx = urb->context;
+       int stride = runtime->frame_bits >> 3;
+
+       offs = 0;
+       urb->dev = ctx->subs->dev;
+       urb->number_of_packets = subs->packs_per_ms;
+       for (i = 0; i < subs->packs_per_ms; ++i) {
+               counts = snd_usb_audio_next_packet_size(subs);
+               urb->iso_frame_desc[i].offset = offs * stride;
+               urb->iso_frame_desc[i].length = counts * stride;
+               offs += counts;
+       }
+       urb->transfer_buffer_length = offs * stride;
+       memset(urb->transfer_buffer,
+              subs->cur_audiofmt->format == SNDRV_PCM_FORMAT_U8 ? 0x80 : 0,
+              offs * stride);
+       return 0;
+}
+
+/*
  * prepare urb for playback data pipe
  *
  * Since a URB can handle only a single linear buffer, we must use double
@@ -487,15 +559,15 @@ static int retire_playback_sync_urb_hs(snd_usb_substream_t *subs,
  * To avoid inconsistencies when updating hwptr_done, we use double buffering
  * for all URBs.
  */
-static int prepare_playback_urb(snd_usb_substream_t *subs,
-                               snd_pcm_runtime_t *runtime,
+static int prepare_playback_urb(struct snd_usb_substream *subs,
+                               struct snd_pcm_runtime *runtime,
                                struct urb *urb)
 {
        int i, stride, offs;
        unsigned int counts;
        unsigned long flags;
        int period_elapsed = 0;
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+       struct snd_urb_ctx *ctx = urb->context;
 
        stride = runtime->frame_bits >> 3;
 
@@ -504,16 +576,7 @@ static int prepare_playback_urb(snd_usb_substream_t *subs,
        urb->number_of_packets = 0;
        spin_lock_irqsave(&subs->lock, flags);
        for (i = 0; i < ctx->packets; i++) {
-               /* calculate the size of a packet */
-               if (subs->fill_max)
-                       counts = subs->maxframesize; /* fixed */
-               else {
-                       subs->phase = (subs->phase & 0xffff)
-                               + (subs->freqm << subs->datainterval);
-                       counts = subs->phase >> 16;
-                       if (counts > subs->maxframesize)
-                               counts = subs->maxframesize;
-               }
+               counts = snd_usb_audio_next_packet_size(subs);
                /* set up descriptor */
                urb->iso_frame_desc[i].offset = offs * stride;
                urb->iso_frame_desc[i].length = counts * stride;
@@ -568,12 +631,8 @@ static int prepare_playback_urb(snd_usb_substream_t *subs,
                subs->hwptr_done -= runtime->buffer_size;
        spin_unlock_irqrestore(&subs->lock, flags);
        urb->transfer_buffer_length = offs * stride;
-       if (period_elapsed) {
-               if (likely(subs->running))
-                       snd_pcm_period_elapsed(subs->pcm_substream);
-               else
-                       tasklet_hi_schedule(&subs->start_period_elapsed);
-       }
+       if (period_elapsed)
+               snd_pcm_period_elapsed(subs->pcm_substream);
        return 0;
 }
 
@@ -581,29 +640,19 @@ static int prepare_playback_urb(snd_usb_substream_t *subs,
  * process after playback data complete
  * - nothing to do
  */
-static int retire_playback_urb(snd_usb_substream_t *subs,
-                              snd_pcm_runtime_t *runtime,
+static int retire_playback_urb(struct snd_usb_substream *subs,
+                              struct snd_pcm_runtime *runtime,
                               struct urb *urb)
 {
        return 0;
 }
 
-/*
- * Delay the snd_pcm_period_elapsed() call until after the start trigger
- * callback so that we're not longer in the substream's lock.
- */
-static void start_period_elapsed(unsigned long data)
-{
-       snd_usb_substream_t *subs = (snd_usb_substream_t *)data;
-       snd_pcm_period_elapsed(subs->pcm_substream);
-}
-
 
 /*
  */
 static struct snd_urb_ops audio_urb_ops[2] = {
        {
-               .prepare =      prepare_playback_urb,
+               .prepare =      prepare_nodata_playback_urb,
                .retire =       retire_playback_urb,
                .prepare_sync = prepare_playback_sync_urb,
                .retire_sync =  retire_playback_sync_urb,
@@ -618,7 +667,7 @@ static struct snd_urb_ops audio_urb_ops[2] = {
 
 static struct snd_urb_ops audio_urb_ops_high_speed[2] = {
        {
-               .prepare =      prepare_playback_urb,
+               .prepare =      prepare_nodata_playback_urb,
                .retire =       retire_playback_urb,
                .prepare_sync = prepare_playback_sync_urb_hs,
                .retire_sync =  retire_playback_sync_urb_hs,
@@ -634,15 +683,15 @@ static struct snd_urb_ops audio_urb_ops_high_speed[2] = {
 /*
  * complete callback from data urb
  */
-static void snd_complete_urb(struct urb *urb, struct pt_regs *regs)
+static void snd_complete_urb(struct urb *urb)
 {
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
-       snd_usb_substream_t *subs = ctx->subs;
-       snd_pcm_substream_t *substream = ctx->subs->pcm_substream;
+       struct snd_urb_ctx *ctx = urb->context;
+       struct snd_usb_substream *subs = ctx->subs;
+       struct snd_pcm_substream *substream = ctx->subs->pcm_substream;
        int err = 0;
 
        if ((subs->running && subs->ops.retire(subs, substream->runtime, urb)) ||
-           ! subs->running || /* can be stopped during retire callback */
+           !subs->running || /* can be stopped during retire callback */
            (err = subs->ops.prepare(subs, substream->runtime, urb)) < 0 ||
            (err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
                clear_bit(ctx->index, &subs->active_mask);
@@ -657,15 +706,15 @@ static void snd_complete_urb(struct urb *urb, struct pt_regs *regs)
 /*
  * complete callback from sync urb
  */
-static void snd_complete_sync_urb(struct urb *urb, struct pt_regs *regs)
+static void snd_complete_sync_urb(struct urb *urb)
 {
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
-       snd_usb_substream_t *subs = ctx->subs;
-       snd_pcm_substream_t *substream = ctx->subs->pcm_substream;
+       struct snd_urb_ctx *ctx = urb->context;
+       struct snd_usb_substream *subs = ctx->subs;
+       struct snd_pcm_substream *substream = ctx->subs->pcm_substream;
        int err = 0;
 
        if ((subs->running && subs->ops.retire_sync(subs, substream->runtime, urb)) ||
-           ! subs->running || /* can be stopped during retire callback */
+           !subs->running || /* can be stopped during retire callback */
            (err = subs->ops.prepare_sync(subs, substream->runtime, urb)) < 0 ||
            (err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
                clear_bit(ctx->index + 16, &subs->active_mask);
@@ -678,7 +727,7 @@ static void snd_complete_sync_urb(struct urb *urb, struct pt_regs *regs)
 
 
 /* get the physical page pointer at the given offset */
-static struct page *snd_pcm_get_vmalloc_page(snd_pcm_substream_t *subs,
+static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs,
                                             unsigned long offset)
 {
        void *pageptr = subs->runtime->dma_area + offset;
@@ -686,29 +735,28 @@ static struct page *snd_pcm_get_vmalloc_page(snd_pcm_substream_t *subs,
 }
 
 /* allocate virtual buffer; may be called more than once */
-static int snd_pcm_alloc_vmalloc_buffer(snd_pcm_substream_t *subs, size_t size)
+static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs, size_t size)
 {
-       snd_pcm_runtime_t *runtime = subs->runtime;
+       struct snd_pcm_runtime *runtime = subs->runtime;
        if (runtime->dma_area) {
                if (runtime->dma_bytes >= size)
                        return 0; /* already large enough */
-               vfree_nocheck(runtime->dma_area);
+               vfree(runtime->dma_area);
        }
-       runtime->dma_area = vmalloc_nocheck(size);
-       if (! runtime->dma_area)
+       runtime->dma_area = vmalloc(size);
+       if (!runtime->dma_area)
                return -ENOMEM;
        runtime->dma_bytes = size;
        return 0;
 }
 
 /* free virtual buffer; may be called more than once */
-static int snd_pcm_free_vmalloc_buffer(snd_pcm_substream_t *subs)
+static int snd_pcm_free_vmalloc_buffer(struct snd_pcm_substream *subs)
 {
-       snd_pcm_runtime_t *runtime = subs->runtime;
-       if (runtime->dma_area) {
-               vfree_nocheck(runtime->dma_area);
-               runtime->dma_area = NULL;
-       }
+       struct snd_pcm_runtime *runtime = subs->runtime;
+
+       vfree(runtime->dma_area);
+       runtime->dma_area = NULL;
        return 0;
 }
 
@@ -716,7 +764,7 @@ static int snd_pcm_free_vmalloc_buffer(snd_pcm_substream_t *subs)
 /*
  * unlink active urbs.
  */
-static int deactivate_urbs(snd_usb_substream_t *subs, int force, int can_sleep)
+static int deactivate_urbs(struct snd_usb_substream *subs, int force, int can_sleep)
 {
        unsigned int i;
        int async;
@@ -728,17 +776,16 @@ static int deactivate_urbs(snd_usb_substream_t *subs, int force, int can_sleep)
 
        async = !can_sleep && async_unlink;
 
-       if (! async && in_interrupt())
+       if (!async && in_interrupt())
                return 0;
 
        for (i = 0; i < subs->nurbs; i++) {
                if (test_bit(i, &subs->active_mask)) {
-                       if (! test_and_set_bit(i, &subs->unlink_mask)) {
+                       if (!test_and_set_bit(i, &subs->unlink_mask)) {
                                struct urb *u = subs->dataurb[i].urb;
-                               if (async) {
-                                       u->transfer_flags |= URB_ASYNC_UNLINK;
+                               if (async)
                                        usb_unlink_urb(u);
-                               else
+                               else
                                        usb_kill_urb(u);
                        }
                }
@@ -746,12 +793,11 @@ static int deactivate_urbs(snd_usb_substream_t *subs, int force, int can_sleep)
        if (subs->syncpipe) {
                for (i = 0; i < SYNC_URBS; i++) {
                        if (test_bit(i+16, &subs->active_mask)) {
-                               if (! test_and_set_bit(i+16, &subs->unlink_mask)) {
+                               if (!test_and_set_bit(i+16, &subs->unlink_mask)) {
                                        struct urb *u = subs->syncurb[i].urb;
-                                       if (async) {
-                                               u->transfer_flags |= URB_ASYNC_UNLINK;
+                                       if (async)
                                                usb_unlink_urb(u);
-                                       else
+                                       else
                                                usb_kill_urb(u);
                                }
                        }
@@ -761,10 +807,35 @@ static int deactivate_urbs(snd_usb_substream_t *subs, int force, int can_sleep)
 }
 
 
+static const char *usb_error_string(int err)
+{
+       switch (err) {
+       case -ENODEV:
+               return "no device";
+       case -ENOENT:
+               return "endpoint not enabled";
+       case -EPIPE:
+               return "endpoint stalled";
+       case -ENOSPC:
+               return "not enough bandwidth";
+       case -ESHUTDOWN:
+               return "device disabled";
+       case -EHOSTUNREACH:
+               return "device suspended";
+       case -EINVAL:
+       case -EAGAIN:
+       case -EFBIG:
+       case -EMSGSIZE:
+               return "internal error";
+       default:
+               return "unknown error";
+       }
+}
+
 /*
  * set up and start data/sync urbs
  */
-static int start_urbs(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
+static int start_urbs(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime)
 {
        unsigned int i;
        int err;
@@ -773,7 +844,8 @@ static int start_urbs(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
                return -EBADFD;
 
        for (i = 0; i < subs->nurbs; i++) {
-               snd_assert(subs->dataurb[i].urb, return -EINVAL);
+               if (snd_BUG_ON(!subs->dataurb[i].urb))
+                       return -EINVAL;
                if (subs->ops.prepare(subs, runtime, subs->dataurb[i].urb) < 0) {
                        snd_printk(KERN_ERR "cannot prepare datapipe for urb %d\n", i);
                        goto __error;
@@ -781,7 +853,8 @@ static int start_urbs(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
        }
        if (subs->syncpipe) {
                for (i = 0; i < SYNC_URBS; i++) {
-                       snd_assert(subs->syncurb[i].urb, return -EINVAL);
+                       if (snd_BUG_ON(!subs->syncurb[i].urb))
+                               return -EINVAL;
                        if (subs->ops.prepare_sync(subs, runtime, subs->syncurb[i].urb) < 0) {
                                snd_printk(KERN_ERR "cannot prepare syncpipe for urb %d\n", i);
                                goto __error;
@@ -793,16 +866,22 @@ static int start_urbs(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
        subs->unlink_mask = 0;
        subs->running = 1;
        for (i = 0; i < subs->nurbs; i++) {
-               if ((err = usb_submit_urb(subs->dataurb[i].urb, GFP_ATOMIC)) < 0) {
-                       snd_printk(KERN_ERR "cannot submit datapipe for urb %d, err = %d\n", i, err);
+               err = usb_submit_urb(subs->dataurb[i].urb, GFP_ATOMIC);
+               if (err < 0) {
+                       snd_printk(KERN_ERR "cannot submit datapipe "
+                                  "for urb %d, error %d: %s\n",
+                                  i, err, usb_error_string(err));
                        goto __error;
                }
                set_bit(i, &subs->active_mask);
        }
        if (subs->syncpipe) {
                for (i = 0; i < SYNC_URBS; i++) {
-                       if ((err = usb_submit_urb(subs->syncurb[i].urb, GFP_ATOMIC)) < 0) {
-                               snd_printk(KERN_ERR "cannot submit syncpipe for urb %d, err = %d\n", i, err);
+                       err = usb_submit_urb(subs->syncurb[i].urb, GFP_ATOMIC);
+                       if (err < 0) {
+                               snd_printk(KERN_ERR "cannot submit syncpipe "
+                                          "for urb %d, error %d: %s\n",
+                                          i, err, usb_error_string(err));
                                goto __error;
                        }
                        set_bit(i + 16, &subs->active_mask);
@@ -820,7 +899,7 @@ static int start_urbs(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
 /*
  *  wait until all urbs are processed.
  */
-static int wait_clear_urbs(snd_usb_substream_t *subs)
+static int wait_clear_urbs(struct snd_usb_substream *subs)
 {
        unsigned long end_time = jiffies + msecs_to_jiffies(1000);
        unsigned int i;
@@ -840,8 +919,7 @@ static int wait_clear_urbs(snd_usb_substream_t *subs)
                }
                if (! alive)
                        break;
-               set_current_state(TASK_UNINTERRUPTIBLE);
-               schedule_timeout(1);
+               schedule_timeout_uninterruptible(1);
        } while (time_before(jiffies, end_time));
        if (alive)
                snd_printk(KERN_ERR "timeout: still %d active urbs..\n", alive);
@@ -852,12 +930,12 @@ static int wait_clear_urbs(snd_usb_substream_t *subs)
 /*
  * return the current pcm pointer.  just return the hwptr_done value.
  */
-static snd_pcm_uframes_t snd_usb_pcm_pointer(snd_pcm_substream_t *substream)
+static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream)
 {
-       snd_usb_substream_t *subs;
+       struct snd_usb_substream *subs;
        snd_pcm_uframes_t hwptr_done;
        
-       subs = (snd_usb_substream_t *)substream->runtime->private_data;
+       subs = (struct snd_usb_substream *)substream->runtime->private_data;
        spin_lock(&subs->lock);
        hwptr_done = subs->hwptr_done;
        spin_unlock(&subs->lock);
@@ -866,32 +944,58 @@ static snd_pcm_uframes_t snd_usb_pcm_pointer(snd_pcm_substream_t *substream)
 
 
 /*
- * start/stop substream
+ * start/stop playback substream
  */
-static int snd_usb_pcm_trigger(snd_pcm_substream_t *substream, int cmd)
+static int snd_usb_pcm_playback_trigger(struct snd_pcm_substream *substream,
+                                       int cmd)
 {
-       snd_usb_substream_t *subs = (snd_usb_substream_t *)substream->runtime->private_data;
-       int err;
+       struct snd_usb_substream *subs = substream->runtime->private_data;
 
        switch (cmd) {
        case SNDRV_PCM_TRIGGER_START:
-               err = start_urbs(subs, substream->runtime);
-               break;
+       case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+               subs->ops.prepare = prepare_playback_urb;
+               return 0;
        case SNDRV_PCM_TRIGGER_STOP:
-               err = deactivate_urbs(subs, 0, 0);
-               break;
+               return deactivate_urbs(subs, 0, 0);
+       case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+               subs->ops.prepare = prepare_nodata_playback_urb;
+               return 0;
        default:
-               err = -EINVAL;
-               break;
+               return -EINVAL;
+       }
+}
+
+/*
+ * start/stop capture substream
+ */
+static int snd_usb_pcm_capture_trigger(struct snd_pcm_substream *substream,
+                                      int cmd)
+{
+       struct snd_usb_substream *subs = substream->runtime->private_data;
+
+       switch (cmd) {
+       case SNDRV_PCM_TRIGGER_START:
+               subs->ops.retire = retire_capture_urb;
+               return start_urbs(subs, substream->runtime);
+       case SNDRV_PCM_TRIGGER_STOP:
+               return deactivate_urbs(subs, 0, 0);
+       case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+               subs->ops.retire = retire_paused_capture_urb;
+               return 0;
+       case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+               subs->ops.retire = retire_capture_urb;
+               return 0;
+       default:
+               return -EINVAL;
        }
-       return err < 0 ? err : 0;
 }
 
 
 /*
  * release a urb data
  */
-static void release_urb_ctx(snd_urb_ctx_t *u)
+static void release_urb_ctx(struct snd_urb_ctx *u)
 {
        if (u->urb) {
                if (u->buffer_size)
@@ -906,7 +1010,7 @@ static void release_urb_ctx(snd_urb_ctx_t *u)
 /*
  * release a substream
  */
-static void release_substream_urbs(snd_usb_substream_t *subs, int force)
+static void release_substream_urbs(struct snd_usb_substream *subs, int force)
 {
        int i;
 
@@ -927,7 +1031,7 @@ static void release_substream_urbs(snd_usb_substream_t *subs, int force)
 /*
  * initialize a substream for plaback/capture
  */
-static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_bytes,
+static int init_substream_urbs(struct snd_usb_substream *subs, unsigned int period_bytes,
                               unsigned int rate, unsigned int frame_bits)
 {
        unsigned int maxsize, n, i;
@@ -1027,7 +1131,7 @@ static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_by
 
        /* allocate and initialize data urbs */
        for (i = 0; i < subs->nurbs; i++) {
-               snd_urb_ctx_t *u = &subs->dataurb[i];
+               struct snd_urb_ctx *u = &subs->dataurb[i];
                u->index = i;
                u->subs = subs;
                u->packets = npacks[i];
@@ -1035,33 +1139,33 @@ static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_by
                if (subs->fmt_type == USB_FORMAT_TYPE_II)
                        u->packets++; /* for transfer delimiter */
                u->urb = usb_alloc_urb(u->packets, GFP_KERNEL);
-               if (! u->urb)
+               if (!u->urb)
                        goto out_of_memory;
                u->urb->transfer_buffer =
                        usb_buffer_alloc(subs->dev, u->buffer_size, GFP_KERNEL,
                                         &u->urb->transfer_dma);
-               if (! u->urb->transfer_buffer)
+               if (!u->urb->transfer_buffer)
                        goto out_of_memory;
                u->urb->pipe = subs->datapipe;
                u->urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
                u->urb->interval = 1 << subs->datainterval;
                u->urb->context = u;
-               u->urb->complete = snd_usb_complete_callback(snd_complete_urb);
+               u->urb->complete = snd_complete_urb;
        }
 
        if (subs->syncpipe) {
                /* allocate and initialize sync urbs */
                subs->syncbuf = usb_buffer_alloc(subs->dev, SYNC_URBS * 4,
                                                 GFP_KERNEL, &subs->sync_dma);
-               if (! subs->syncbuf)
+               if (!subs->syncbuf)
                        goto out_of_memory;
                for (i = 0; i < SYNC_URBS; i++) {
-                       snd_urb_ctx_t *u = &subs->syncurb[i];
+                       struct snd_urb_ctx *u = &subs->syncurb[i];
                        u->index = i;
                        u->subs = subs;
                        u->packets = 1;
                        u->urb = usb_alloc_urb(1, GFP_KERNEL);
-                       if (! u->urb)
+                       if (!u->urb)
                                goto out_of_memory;
                        u->urb->transfer_buffer = subs->syncbuf + i * 4;
                        u->urb->transfer_dma = subs->sync_dma + i * 4;
@@ -1072,7 +1176,7 @@ static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_by
                        u->urb->number_of_packets = 1;
                        u->urb->interval = 1 << subs->syncinterval;
                        u->urb->context = u;
-                       u->urb->complete = snd_usb_complete_callback(snd_complete_sync_urb);
+                       u->urb->complete = snd_complete_sync_urb;
                }
        }
        return 0;
@@ -1086,7 +1190,7 @@ out_of_memory:
 /*
  * find a matching audio format
  */
-static struct audioformat *find_format(snd_usb_substream_t *subs, unsigned int format,
+static struct audioformat *find_format(struct snd_usb_substream *subs, unsigned int format,
                                       unsigned int rate, unsigned int channels)
 {
        struct list_head *p;
@@ -1211,7 +1315,7 @@ static int init_usb_sample_rate(struct usb_device *dev, int iface,
 /*
  * find a matching format and set up the interface
  */
-static int set_format(snd_usb_substream_t *subs, struct audioformat *fmt)
+static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt)
 {
        struct usb_device *dev = subs->dev;
        struct usb_host_interface *alts;
@@ -1222,17 +1326,23 @@ static int set_format(snd_usb_substream_t *subs, struct audioformat *fmt)
        int err;
 
        iface = usb_ifnum_to_if(dev, fmt->iface);
-       snd_assert(iface, return -EINVAL);
+       if (WARN_ON(!iface))
+               return -EINVAL;
        alts = &iface->altsetting[fmt->altset_idx];
        altsd = get_iface_desc(alts);
-       snd_assert(altsd->bAlternateSetting == fmt->altsetting, return -EINVAL);
+       if (WARN_ON(altsd->bAlternateSetting != fmt->altsetting))
+               return -EINVAL;
 
        if (fmt == subs->cur_audiofmt)
                return 0;
 
        /* close the old interface */
        if (subs->interface >= 0 && subs->interface != fmt->iface) {
-               usb_set_interface(subs->dev, subs->interface, 0);
+               if (usb_set_interface(subs->dev, subs->interface, 0) < 0) {
+                       snd_printk(KERN_ERR "%d:%d:%d: return to setting 0 failed\n",
+                               dev->devnum, fmt->iface, fmt->altsetting);
+                       return -EIO;
+               }
                subs->interface = -1;
                subs->format = 0;
        }
@@ -1321,8 +1431,8 @@ static int set_format(snd_usb_substream_t *subs, struct audioformat *fmt)
        subs->cur_audiofmt = fmt;
 
 #if 0
-       printk("setting done: format = %d, rate = %d, channels = %d\n",
-              fmt->format, fmt->rate, fmt->channels);
+       printk("setting done: format = %d, rate = %d..%d, channels = %d\n",
+              fmt->format, fmt->rate_min, fmt->rate_max, fmt->channels);
        printk("  datapipe = 0x%0x, syncpipe = 0x%0x\n",
               subs->datapipe, subs->syncpipe);
 #endif
@@ -1340,10 +1450,10 @@ static int set_format(snd_usb_substream_t *subs, struct audioformat *fmt)
  * if sg buffer is supported on the later version of alsa, we'll follow
  * that.
  */
-static int snd_usb_hw_params(snd_pcm_substream_t *substream,
-                            snd_pcm_hw_params_t *hw_params)
+static int snd_usb_hw_params(struct snd_pcm_substream *substream,
+                            struct snd_pcm_hw_params *hw_params)
 {
-       snd_usb_substream_t *subs = (snd_usb_substream_t *)substream->runtime->private_data;
+       struct snd_usb_substream *subs = substream->runtime->private_data;
        struct audioformat *fmt;
        unsigned int channels, rate, format;
        int ret, changed;
@@ -1357,9 +1467,9 @@ static int snd_usb_hw_params(snd_pcm_substream_t *substream,
        rate = params_rate(hw_params);
        channels = params_channels(hw_params);
        fmt = find_format(subs, format, rate, channels);
-       if (! fmt) {
-               snd_printd(KERN_DEBUG "cannot set format: format = %s, rate = %d, channels = %d\n",
-                          snd_pcm_format_name(format), rate, channels);
+       if (!fmt) {
+               snd_printd(KERN_DEBUG "cannot set format: format = 0x%x, rate = %d, channels = %d\n",
+                          format, rate, channels);
                return -EINVAL;
        }
 
@@ -1397,14 +1507,15 @@ static int snd_usb_hw_params(snd_pcm_substream_t *substream,
  *
  * reset the audio format and release the buffer
  */
-static int snd_usb_hw_free(snd_pcm_substream_t *substream)
+static int snd_usb_hw_free(struct snd_pcm_substream *substream)
 {
-       snd_usb_substream_t *subs = (snd_usb_substream_t *)substream->runtime->private_data;
+       struct snd_usb_substream *subs = substream->runtime->private_data;
 
        subs->cur_audiofmt = NULL;
        subs->cur_rate = 0;
        subs->period_bytes = 0;
-       release_substream_urbs(subs, 0);
+       if (!subs->stream->chip->shutdown)
+               release_substream_urbs(subs, 0);
        return snd_pcm_free_vmalloc_buffer(substream);
 }
 
@@ -1413,10 +1524,10 @@ static int snd_usb_hw_free(snd_pcm_substream_t *substream)
  *
  * only a few subtle things...
  */
-static int snd_usb_pcm_prepare(snd_pcm_substream_t *substream)
+static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
-       snd_usb_substream_t *subs = (snd_usb_substream_t *)runtime->private_data;
+       struct snd_pcm_runtime *runtime = substream->runtime;
+       struct snd_usb_substream *subs = runtime->private_data;
 
        if (! subs->cur_audiofmt) {
                snd_printk(KERN_ERR "usbaudio: no format is specified!\n");
@@ -1436,29 +1547,26 @@ static int snd_usb_pcm_prepare(snd_pcm_substream_t *substream)
        deactivate_urbs(subs, 0, 1);
        wait_clear_urbs(subs);
 
-       return 0;
+       /* for playback, submit the URBs now; otherwise, the first hwptr_done
+        * updates for all URBs would happen at the same time when starting */
+       if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
+               subs->ops.prepare = prepare_nodata_playback_urb;
+               return start_urbs(subs, runtime);
+       } else
+               return 0;
 }
 
-static snd_pcm_hardware_t snd_usb_playback =
-{
-       .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
-                                SNDRV_PCM_INFO_BLOCK_TRANSFER |
-                                SNDRV_PCM_INFO_MMAP_VALID),
-       .buffer_bytes_max =     (256*1024),
-       .period_bytes_min =     64,
-       .period_bytes_max =     (128*1024),
-       .periods_min =          2,
-       .periods_max =          1024,
-};
-
-static snd_pcm_hardware_t snd_usb_capture =
+static struct snd_pcm_hardware snd_usb_hardware =
 {
-       .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
-                                SNDRV_PCM_INFO_BLOCK_TRANSFER |
-                                SNDRV_PCM_INFO_MMAP_VALID),
-       .buffer_bytes_max =     (256*1024),
+       .info =                 SNDRV_PCM_INFO_MMAP |
+                               SNDRV_PCM_INFO_MMAP_VALID |
+                               SNDRV_PCM_INFO_BATCH |
+                               SNDRV_PCM_INFO_INTERLEAVED |
+                               SNDRV_PCM_INFO_BLOCK_TRANSFER |
+                               SNDRV_PCM_INFO_PAUSE,
+       .buffer_bytes_max =     1024 * 1024,
        .period_bytes_min =     64,
-       .period_bytes_max =     (128*1024),
+       .period_bytes_max =     512 * 1024,
        .periods_min =          2,
        .periods_max =          1024,
 };
@@ -1473,14 +1581,14 @@ static snd_pcm_hardware_t snd_usb_capture =
 #define hwc_debug(fmt, args...) /**/
 #endif
 
-static int hw_check_valid_format(snd_pcm_hw_params_t *params, struct audioformat *fp)
+static int hw_check_valid_format(struct snd_pcm_hw_params *params, struct audioformat *fp)
 {
-       snd_interval_t *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
-       snd_interval_t *ct = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
-       snd_mask_t *fmts = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+       struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+       struct snd_interval *ct = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+       struct snd_mask *fmts = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 
        /* check the format */
-       if (! snd_mask_test(fmts, fp->format)) {
+       if (!snd_mask_test(fmts, fp->format)) {
                hwc_debug("   > check: no supported format %d\n", fp->format);
                return 0;
        }
@@ -1501,12 +1609,12 @@ static int hw_check_valid_format(snd_pcm_hw_params_t *params, struct audioformat
        return 1;
 }
 
-static int hw_rule_rate(snd_pcm_hw_params_t *params,
-                       snd_pcm_hw_rule_t *rule)
+static int hw_rule_rate(struct snd_pcm_hw_params *params,
+                       struct snd_pcm_hw_rule *rule)
 {
-       snd_usb_substream_t *subs = rule->private;
+       struct snd_usb_substream *subs = rule->private;
        struct list_head *p;
-       snd_interval_t *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+       struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
        unsigned int rmin, rmax;
        int changed;
 
@@ -1516,7 +1624,7 @@ static int hw_rule_rate(snd_pcm_hw_params_t *params,
        list_for_each(p, &subs->fmt_list) {
                struct audioformat *fp;
                fp = list_entry(p, struct audioformat, list);
-               if (! hw_check_valid_format(params, fp))
+               if (!hw_check_valid_format(params, fp))
                        continue;
                if (changed++) {
                        if (rmin > fp->rate_min)
@@ -1529,7 +1637,7 @@ static int hw_rule_rate(snd_pcm_hw_params_t *params,
                }
        }
 
-       if (! changed) {
+       if (!changed) {
                hwc_debug("  --> get empty\n");
                it->empty = 1;
                return -EINVAL;
@@ -1555,12 +1663,12 @@ static int hw_rule_rate(snd_pcm_hw_params_t *params,
 }
 
 
-static int hw_rule_channels(snd_pcm_hw_params_t *params,
-                           snd_pcm_hw_rule_t *rule)
+static int hw_rule_channels(struct snd_pcm_hw_params *params,
+                           struct snd_pcm_hw_rule *rule)
 {
-       snd_usb_substream_t *subs = rule->private;
+       struct snd_usb_substream *subs = rule->private;
        struct list_head *p;
-       snd_interval_t *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+       struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
        unsigned int rmin, rmax;
        int changed;
 
@@ -1570,7 +1678,7 @@ static int hw_rule_channels(snd_pcm_hw_params_t *params,
        list_for_each(p, &subs->fmt_list) {
                struct audioformat *fp;
                fp = list_entry(p, struct audioformat, list);
-               if (! hw_check_valid_format(params, fp))
+               if (!hw_check_valid_format(params, fp))
                        continue;
                if (changed++) {
                        if (rmin > fp->channels)
@@ -1583,7 +1691,7 @@ static int hw_rule_channels(snd_pcm_hw_params_t *params,
                }
        }
 
-       if (! changed) {
+       if (!changed) {
                hwc_debug("  --> get empty\n");
                it->empty = 1;
                return -EINVAL;
@@ -1608,12 +1716,12 @@ static int hw_rule_channels(snd_pcm_hw_params_t *params,
        return changed;
 }
 
-static int hw_rule_format(snd_pcm_hw_params_t *params,
-                         snd_pcm_hw_rule_t *rule)
+static int hw_rule_format(struct snd_pcm_hw_params *params,
+                         struct snd_pcm_hw_rule *rule)
 {
-       snd_usb_substream_t *subs = rule->private;
+       struct snd_usb_substream *subs = rule->private;
        struct list_head *p;
-       snd_mask_t *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+       struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
        u64 fbits;
        u32 oldbits[2];
        int changed;
@@ -1623,7 +1731,7 @@ static int hw_rule_format(snd_pcm_hw_params_t *params,
        list_for_each(p, &subs->fmt_list) {
                struct audioformat *fp;
                fp = list_entry(p, struct audioformat, list);
-               if (! hw_check_valid_format(params, fp))
+               if (!hw_check_valid_format(params, fp))
                        continue;
                fbits |= (1ULL << fp->format);
        }
@@ -1632,7 +1740,7 @@ static int hw_rule_format(snd_pcm_hw_params_t *params,
        oldbits[1] = fmt->bits[1];
        fmt->bits[0] &= (u32)fbits;
        fmt->bits[1] &= (u32)(fbits >> 32);
-       if (! fmt->bits[0] && ! fmt->bits[1]) {
+       if (!fmt->bits[0] && !fmt->bits[1]) {
                hwc_debug("  --> get empty\n");
                return -EINVAL;
        }
@@ -1646,7 +1754,7 @@ static int hw_rule_format(snd_pcm_hw_params_t *params,
 /*
  * check whether the registered audio formats need special hw-constraints
  */
-static int check_hw_params_convention(snd_usb_substream_t *subs)
+static int check_hw_params_convention(struct snd_usb_substream *subs)
 {
        int i;
        u32 *channels;
@@ -1658,6 +1766,10 @@ static int check_hw_params_convention(snd_usb_substream_t *subs)
 
        channels = kcalloc(MAX_MASK, sizeof(u32), GFP_KERNEL);
        rates = kcalloc(MAX_MASK, sizeof(u32), GFP_KERNEL);
+       if (!channels || !rates) {
+               err = -ENOMEM;
+               goto __out;
+       }
 
        list_for_each(p, &subs->fmt_list) {
                struct audioformat *f;
@@ -1685,6 +1797,9 @@ static int check_hw_params_convention(snd_usb_substream_t *subs)
                }
                channels[f->format] |= (1 << f->channels);
                rates[f->format] |= f->rates;
+               /* needs knot? */
+               if (f->rates & SNDRV_PCM_RATE_KNOT)
+                       goto __out;
        }
        /* check whether channels and rates match for all formats */
        cmaster = rmaster = 0;
@@ -1725,12 +1840,49 @@ static int check_hw_params_convention(snd_usb_substream_t *subs)
        return err;
 }
 
+/*
+ *  If the device supports unusual bit rates, does the request meet these?
+ */
+static int snd_usb_pcm_check_knot(struct snd_pcm_runtime *runtime,
+                                 struct snd_usb_substream *subs)
+{
+       struct audioformat *fp;
+       int count = 0, needs_knot = 0;
+       int err;
+
+       list_for_each_entry(fp, &subs->fmt_list, list) {
+               if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS)
+                       return 0;
+               count += fp->nr_rates;
+               if (fp->rates & SNDRV_PCM_RATE_KNOT)
+                       needs_knot = 1;
+       }
+       if (!needs_knot)
+               return 0;
+
+       subs->rate_list.count = count;
+       subs->rate_list.list = kmalloc(sizeof(int) * count, GFP_KERNEL);
+       subs->rate_list.mask = 0;
+       count = 0;
+       list_for_each_entry(fp, &subs->fmt_list, list) {
+               int i;
+               for (i = 0; i < fp->nr_rates; i++)
+                       subs->rate_list.list[count++] = fp->rate_table[i];
+       }
+       err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+                                        &subs->rate_list);
+       if (err < 0)
+               return err;
+
+       return 0;
+}
+
 
 /*
  * set up the runtime hardware information.
  */
 
-static int setup_hw_info(snd_pcm_runtime_t *runtime, snd_usb_substream_t *subs)
+static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substream *subs)
 {
        struct list_head *p;
        int err;
@@ -1763,11 +1915,17 @@ static int setup_hw_info(snd_pcm_runtime_t *runtime, snd_usb_substream_t *subs)
        }
 
        /* set the period time minimum 1ms */
+       /* FIXME: high-speed mode allows 125us minimum period, but many parts
+        * in the current code assume the 1ms period.
+        */
        snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME,
                                     1000 * MIN_PACKS_URB,
                                     /*(nrpacks * MAX_URBS) * 1000*/ UINT_MAX);
 
-       if (check_hw_params_convention(subs)) {
+       err = check_hw_params_convention(subs);
+       if (err < 0)
+               return err;
+       else if (err) {
                hwc_debug("setting extra hw constraints...\n");
                if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
                                               hw_rule_rate, subs,
@@ -1787,29 +1945,30 @@ static int setup_hw_info(snd_pcm_runtime_t *runtime, snd_usb_substream_t *subs)
                                               SNDRV_PCM_HW_PARAM_CHANNELS,
                                               -1)) < 0)
                        return err;
+               if ((err = snd_usb_pcm_check_knot(runtime, subs)) < 0)
+                       return err;
        }
        return 0;
 }
 
-static int snd_usb_pcm_open(snd_pcm_substream_t *substream, int direction,
-                           snd_pcm_hardware_t *hw)
+static int snd_usb_pcm_open(struct snd_pcm_substream *substream, int direction)
 {
-       snd_usb_stream_t *as = snd_pcm_substream_chip(substream);
-       snd_pcm_runtime_t *runtime = substream->runtime;
-       snd_usb_substream_t *subs = &as->substream[direction];
+       struct snd_usb_stream *as = snd_pcm_substream_chip(substream);
+       struct snd_pcm_runtime *runtime = substream->runtime;
+       struct snd_usb_substream *subs = &as->substream[direction];
 
        subs->interface = -1;
        subs->format = 0;
-       runtime->hw = *hw;
+       runtime->hw = snd_usb_hardware;
        runtime->private_data = subs;
        subs->pcm_substream = substream;
        return setup_hw_info(runtime, subs);
 }
 
-static int snd_usb_pcm_close(snd_pcm_substream_t *substream, int direction)
+static int snd_usb_pcm_close(struct snd_pcm_substream *substream, int direction)
 {
-       snd_usb_stream_t *as = snd_pcm_substream_chip(substream);
-       snd_usb_substream_t *subs = &as->substream[direction];
+       struct snd_usb_stream *as = snd_pcm_substream_chip(substream);
+       struct snd_usb_substream *subs = &as->substream[direction];
 
        if (subs->interface >= 0) {
                usb_set_interface(subs->dev, subs->interface, 0);
@@ -1819,46 +1978,46 @@ static int snd_usb_pcm_close(snd_pcm_substream_t *substream, int direction)
        return 0;
 }
 
-static int snd_usb_playback_open(snd_pcm_substream_t *substream)
+static int snd_usb_playback_open(struct snd_pcm_substream *substream)
 {
-       return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_PLAYBACK, &snd_usb_playback);
+       return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_PLAYBACK);
 }
 
-static int snd_usb_playback_close(snd_pcm_substream_t *substream)
+static int snd_usb_playback_close(struct snd_pcm_substream *substream)
 {
        return snd_usb_pcm_close(substream, SNDRV_PCM_STREAM_PLAYBACK);
 }
 
-static int snd_usb_capture_open(snd_pcm_substream_t *substream)
+static int snd_usb_capture_open(struct snd_pcm_substream *substream)
 {
-       return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_CAPTURE, &snd_usb_capture);
+       return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_CAPTURE);
 }
 
-static int snd_usb_capture_close(snd_pcm_substream_t *substream)
+static int snd_usb_capture_close(struct snd_pcm_substream *substream)
 {
        return snd_usb_pcm_close(substream, SNDRV_PCM_STREAM_CAPTURE);
 }
 
-static snd_pcm_ops_t snd_usb_playback_ops = {
+static struct snd_pcm_ops snd_usb_playback_ops = {
        .open =         snd_usb_playback_open,
        .close =        snd_usb_playback_close,
        .ioctl =        snd_pcm_lib_ioctl,
        .hw_params =    snd_usb_hw_params,
        .hw_free =      snd_usb_hw_free,
        .prepare =      snd_usb_pcm_prepare,
-       .trigger =      snd_usb_pcm_trigger,
+       .trigger =      snd_usb_pcm_playback_trigger,
        .pointer =      snd_usb_pcm_pointer,
        .page =         snd_pcm_get_vmalloc_page,
 };
 
-static snd_pcm_ops_t snd_usb_capture_ops = {
+static struct snd_pcm_ops snd_usb_capture_ops = {
        .open =         snd_usb_capture_open,
        .close =        snd_usb_capture_close,
        .ioctl =        snd_pcm_lib_ioctl,
        .hw_params =    snd_usb_hw_params,
        .hw_free =      snd_usb_hw_free,
        .prepare =      snd_usb_pcm_prepare,
-       .trigger =      snd_usb_pcm_trigger,
+       .trigger =      snd_usb_pcm_capture_trigger,
        .pointer =      snd_usb_pcm_pointer,
        .page =         snd_pcm_get_vmalloc_page,
 };
@@ -1934,10 +2093,9 @@ int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
        void *buf = NULL;
 
        if (size > 0) {
-               buf = kmalloc(size, GFP_KERNEL);
+               buf = kmemdup(data, size, GFP_KERNEL);
                if (!buf)
                        return -ENOMEM;
-               memcpy(buf, data, size);
        }
        err = usb_control_msg(dev, pipe, request, requesttype,
                              value, index, buf, size, timeout);
@@ -1957,6 +2115,14 @@ static int usb_audio_probe(struct usb_interface *intf,
                           const struct usb_device_id *id);
 static void usb_audio_disconnect(struct usb_interface *intf);
 
+#ifdef CONFIG_PM
+static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message);
+static int usb_audio_resume(struct usb_interface *intf);
+#else
+#define usb_audio_suspend NULL
+#define usb_audio_resume NULL
+#endif
+
 static struct usb_device_id usb_audio_ids [] = {
 #include "usbquirks.h"
     { .match_flags = (USB_DEVICE_ID_MATCH_INT_CLASS | USB_DEVICE_ID_MATCH_INT_SUBCLASS),
@@ -1968,18 +2134,21 @@ static struct usb_device_id usb_audio_ids [] = {
 MODULE_DEVICE_TABLE (usb, usb_audio_ids);
 
 static struct usb_driver usb_audio_driver = {
-       .owner =        THIS_MODULE,
        .name =         "snd-usb-audio",
        .probe =        usb_audio_probe,
        .disconnect =   usb_audio_disconnect,
+       .suspend =      usb_audio_suspend,
+       .resume =       usb_audio_resume,
        .id_table =     usb_audio_ids,
 };
 
 
+#if defined(CONFIG_PROC_FS) && defined(CONFIG_SND_VERBOSE_PROCFS)
+
 /*
  * proc interface for list the supported pcm formats
  */
-static void proc_dump_substream_formats(snd_usb_substream_t *subs, snd_info_buffer_t *buffer)
+static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer)
 {
        struct list_head *p;
        static char *sync_types[4] = {
@@ -1991,7 +2160,7 @@ static void proc_dump_substream_formats(snd_usb_substream_t *subs, snd_info_buff
                fp = list_entry(p, struct audioformat, list);
                snd_iprintf(buffer, "  Interface %d\n", fp->iface);
                snd_iprintf(buffer, "    Altset %d\n", fp->altsetting);
-               snd_iprintf(buffer, "    Format: %s\n", snd_pcm_format_name(fp->format));
+               snd_iprintf(buffer, "    Format: 0x%x\n", fp->format);
                snd_iprintf(buffer, "    Channels: %d\n", fp->channels);
                snd_iprintf(buffer, "    Endpoint: %d %s (%s)\n",
                            fp->endpoint & USB_ENDPOINT_NUMBER_MASK,
@@ -2015,7 +2184,7 @@ static void proc_dump_substream_formats(snd_usb_substream_t *subs, snd_info_buff
        }
 }
 
-static void proc_dump_substream_status(snd_usb_substream_t *subs, snd_info_buffer_t *buffer)
+static void proc_dump_substream_status(struct snd_usb_substream *subs, struct snd_info_buffer *buffer)
 {
        if (subs->running) {
                unsigned int i;
@@ -2037,9 +2206,9 @@ static void proc_dump_substream_status(snd_usb_substream_t *subs, snd_info_buffe
        }
 }
 
-static void proc_pcm_format_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
+static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
 {
-       snd_usb_stream_t *stream = entry->private_data;
+       struct snd_usb_stream *stream = entry->private_data;
 
        snd_iprintf(buffer, "%s : %s\n", stream->chip->card->longname, stream->pcm->name);
 
@@ -2055,39 +2224,51 @@ static void proc_pcm_format_read(snd_info_entry_t *entry, snd_info_buffer_t *buf
        }
 }
 
-static void proc_pcm_format_add(snd_usb_stream_t *stream)
+static void proc_pcm_format_add(struct snd_usb_stream *stream)
 {
-       snd_info_entry_t *entry;
+       struct snd_info_entry *entry;
        char name[32];
-       snd_card_t *card = stream->chip->card;
+       struct snd_card *card = stream->chip->card;
 
        sprintf(name, "stream%d", stream->pcm_index);
-       if (! snd_card_proc_new(card, name, &entry))
-               snd_info_set_text_ops(entry, stream, 1024, proc_pcm_format_read);
+       if (!snd_card_proc_new(card, name, &entry))
+               snd_info_set_text_ops(entry, stream, proc_pcm_format_read);
 }
 
+#else
+
+static inline void proc_pcm_format_add(struct snd_usb_stream *stream)
+{
+}
+
+#endif
 
 /*
  * initialize the substream instance.
  */
 
-static void init_substream(snd_usb_stream_t *as, int stream, struct audioformat *fp)
+static void init_substream(struct snd_usb_stream *as, int stream, struct audioformat *fp)
 {
-       snd_usb_substream_t *subs = &as->substream[stream];
+       struct snd_usb_substream *subs = &as->substream[stream];
 
        INIT_LIST_HEAD(&subs->fmt_list);
        spin_lock_init(&subs->lock);
-       if (stream == SNDRV_PCM_STREAM_PLAYBACK)
-               tasklet_init(&subs->start_period_elapsed, start_period_elapsed,
-                            (unsigned long)subs);
 
        subs->stream = as;
        subs->direction = stream;
        subs->dev = as->chip->dev;
-       if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL)
+       if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) {
                subs->ops = audio_urb_ops[stream];
-       else
+       } else {
                subs->ops = audio_urb_ops_high_speed[stream];
+               switch (as->chip->usb_id) {
+               case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
+               case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
+               case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
+                       subs->ops.retire_sync = retire_playback_sync_urb_hs_emu;
+                       break;
+               }
+       }
        snd_pcm_set_ops(as->pcm, stream,
                        stream == SNDRV_PCM_STREAM_PLAYBACK ?
                        &snd_usb_playback_ops : &snd_usb_capture_ops);
@@ -2103,24 +2284,25 @@ static void init_substream(snd_usb_stream_t *as, int stream, struct audioformat
 /*
  * free a substream
  */
-static void free_substream(snd_usb_substream_t *subs)
+static void free_substream(struct snd_usb_substream *subs)
 {
        struct list_head *p, *n;
 
-       if (! subs->num_formats)
+       if (!subs->num_formats)
                return; /* not initialized */
        list_for_each_safe(p, n, &subs->fmt_list) {
                struct audioformat *fp = list_entry(p, struct audioformat, list);
                kfree(fp->rate_table);
                kfree(fp);
        }
+       kfree(subs->rate_list.list);
 }
 
 
 /*
  * free a usb stream instance
  */
-static void snd_usb_audio_stream_free(snd_usb_stream_t *stream)
+static void snd_usb_audio_stream_free(struct snd_usb_stream *stream)
 {
        free_substream(&stream->substream[0]);
        free_substream(&stream->substream[1]);
@@ -2128,9 +2310,9 @@ static void snd_usb_audio_stream_free(snd_usb_stream_t *stream)
        kfree(stream);
 }
 
-static void snd_usb_audio_pcm_free(snd_pcm_t *pcm)
+static void snd_usb_audio_pcm_free(struct snd_pcm *pcm)
 {
-       snd_usb_stream_t *stream = pcm->private_data;
+       struct snd_usb_stream *stream = pcm->private_data;
        if (stream) {
                stream->pcm = NULL;
                snd_usb_audio_stream_free(stream);
@@ -2143,20 +2325,20 @@ static void snd_usb_audio_pcm_free(snd_pcm_t *pcm)
  * if a stream with the same endpoint already exists, append to it.
  * if not, create a new pcm stream.
  */
-static int add_audio_endpoint(snd_usb_audio_t *chip, int stream, struct audioformat *fp)
+static int add_audio_endpoint(struct snd_usb_audio *chip, int stream, struct audioformat *fp)
 {
        struct list_head *p;
-       snd_usb_stream_t *as;
-       snd_usb_substream_t *subs;
-       snd_pcm_t *pcm;
+       struct snd_usb_stream *as;
+       struct snd_usb_substream *subs;
+       struct snd_pcm *pcm;
        int err;
 
        list_for_each(p, &chip->pcm_list) {
-               as = list_entry(p, snd_usb_stream_t, list);
+               as = list_entry(p, struct snd_usb_stream, list);
                if (as->fmt_type != fp->fmt_type)
                        continue;
                subs = &as->substream[stream];
-               if (! subs->endpoint)
+               if (!subs->endpoint)
                        continue;
                if (subs->endpoint == fp->endpoint) {
                        list_add_tail(&fp->list, &subs->fmt_list);
@@ -2167,7 +2349,7 @@ static int add_audio_endpoint(snd_usb_audio_t *chip, int stream, struct audiofor
        }
        /* look for an empty stream */
        list_for_each(p, &chip->pcm_list) {
-               as = list_entry(p, snd_usb_stream_t, list);
+               as = list_entry(p, struct snd_usb_stream, list);
                if (as->fmt_type != fp->fmt_type)
                        continue;
                subs = &as->substream[stream];
@@ -2181,10 +2363,9 @@ static int add_audio_endpoint(snd_usb_audio_t *chip, int stream, struct audiofor
        }
 
        /* create a new pcm */
-       as = kmalloc(sizeof(*as), GFP_KERNEL);
-       if (! as)
+       as = kzalloc(sizeof(*as), GFP_KERNEL);
+       if (!as)
                return -ENOMEM;
-       memset(as, 0, sizeof(*as));
        as->pcm_index = chip->pcm_devs;
        as->chip = chip;
        as->fmt_type = fp->fmt_type;
@@ -2219,7 +2400,7 @@ static int add_audio_endpoint(snd_usb_audio_t *chip, int stream, struct audiofor
 /*
  * check if the device uses big-endian samples
  */
-static int is_big_endian_format(snd_usb_audio_t *chip, struct audioformat *fp)
+static int is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
 {
        switch (chip->usb_id) {
        case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
@@ -2227,7 +2408,9 @@ static int is_big_endian_format(snd_usb_audio_t *chip, struct audioformat *fp)
                        return 1;
                break;
        case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
-               return 1;
+               if (device_setup[chip->index] == 0x00 ||
+                   fp->altsetting==1 || fp->altsetting==2 || fp->altsetting==3)
+                       return 1;
        }
        return 0;
 }
@@ -2241,7 +2424,7 @@ static int is_big_endian_format(snd_usb_audio_t *chip, struct audioformat *fp)
  * @format: the format tag (wFormatTag)
  * @fmt: the format type descriptor
  */
-static int parse_audio_format_i_type(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format_i_type(struct snd_usb_audio *chip, struct audioformat *fp,
                                     int format, unsigned char *fmt)
 {
        int pcm_format;
@@ -2290,11 +2473,12 @@ static int parse_audio_format_i_type(snd_usb_audio_t *chip, struct audioformat *
                }
                break;
        case USB_AUDIO_FORMAT_PCM8:
-               /* Dallas DS4201 workaround */
+               pcm_format = SNDRV_PCM_FORMAT_U8;
+
+               /* Dallas DS4201 workaround: it advertises U8 format, but really
+                  supports S8. */
                if (chip->usb_id == USB_ID(0x04fa, 0x4201))
                        pcm_format = SNDRV_PCM_FORMAT_S8;
-               else
-                       pcm_format = SNDRV_PCM_FORMAT_U8;
                break;
        case USB_AUDIO_FORMAT_IEEE_FLOAT:
                pcm_format = SNDRV_PCM_FORMAT_FLOAT_LE;
@@ -2324,10 +2508,11 @@ static int parse_audio_format_i_type(snd_usb_audio_t *chip, struct audioformat *
  * @offset: the start offset of descriptor pointing the rate type
  *          (7 for type I and II, 8 for type II)
  */
-static int parse_audio_format_rates(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format_rates(struct snd_usb_audio *chip, struct audioformat *fp,
                                    unsigned char *fmt, int offset)
 {
        int nr_rates = fmt[offset];
+
        if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) {
                snd_printk(KERN_ERR "%d:%u:%d : invalid FORMAT_TYPE desc\n",
                                   chip->dev->devnum, fp->iface, fp->altsetting);
@@ -2338,32 +2523,37 @@ static int parse_audio_format_rates(snd_usb_audio_t *chip, struct audioformat *f
                /*
                 * build the rate table and bitmap flags
                 */
-               int r, idx, c;
-               /* this table corresponds to the SNDRV_PCM_RATE_XXX bit */
-               static unsigned int conv_rates[] = {
-                       5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
-                       64000, 88200, 96000, 176400, 192000
-               };
+               int r, idx;
+
                fp->rate_table = kmalloc(sizeof(int) * nr_rates, GFP_KERNEL);
                if (fp->rate_table == NULL) {
                        snd_printk(KERN_ERR "cannot malloc\n");
                        return -1;
                }
 
-               fp->nr_rates = nr_rates;
-               fp->rate_min = fp->rate_max = combine_triple(&fmt[8]);
+               fp->nr_rates = 0;
+               fp->rate_min = fp->rate_max = 0;
                for (r = 0, idx = offset + 1; r < nr_rates; r++, idx += 3) {
-                       unsigned int rate = fp->rate_table[r] = combine_triple(&fmt[idx]);
-                       if (rate < fp->rate_min)
+                       unsigned int rate = combine_triple(&fmt[idx]);
+                       if (!rate)
+                               continue;
+                       /* C-Media CM6501 mislabels its 96 kHz altsetting */
+                       if (rate == 48000 && nr_rates == 1 &&
+                           (chip->usb_id == USB_ID(0x0d8c, 0x0201) ||
+                            chip->usb_id == USB_ID(0x0d8c, 0x0102)) &&
+                           fp->altsetting == 5 && fp->maxpacksize == 392)
+                               rate = 96000;
+                       fp->rate_table[fp->nr_rates] = rate;
+                       if (!fp->rate_min || rate < fp->rate_min)
                                fp->rate_min = rate;
-                       else if (rate > fp->rate_max)
+                       if (!fp->rate_max || rate > fp->rate_max)
                                fp->rate_max = rate;
-                       for (c = 0; c < (int)ARRAY_SIZE(conv_rates); c++) {
-                               if (rate == conv_rates[c]) {
-                                       fp->rates |= (1 << c);
-                                       break;
-                               }
-                       }
+                       fp->rates |= snd_pcm_rate_to_rate_bit(rate);
+                       fp->nr_rates++;
+               }
+               if (!fp->nr_rates) {
+                       hwc_debug("All rates were zero. Skipping format!\n");
+                       return -1;
                }
        } else {
                /* continuous rates */
@@ -2377,7 +2567,7 @@ static int parse_audio_format_rates(snd_usb_audio_t *chip, struct audioformat *f
 /*
  * parse the format type I and III descriptors
  */
-static int parse_audio_format_i(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format_i(struct snd_usb_audio *chip, struct audioformat *fp,
                                int format, unsigned char *fmt)
 {
        int pcm_format;
@@ -2387,7 +2577,18 @@ static int parse_audio_format_i(snd_usb_audio_t *chip, struct audioformat *fp,
                 *        but we give normal PCM format to get the existing
                 *        apps working...
                 */
-               pcm_format = SNDRV_PCM_FORMAT_S16_LE;
+               switch (chip->usb_id) {
+
+               case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
+                       if (device_setup[chip->index] == 0x00 && 
+                           fp->altsetting == 6)
+                               pcm_format = SNDRV_PCM_FORMAT_S16_BE;
+                       else
+                               pcm_format = SNDRV_PCM_FORMAT_S16_LE;
+                       break;
+               default:
+                       pcm_format = SNDRV_PCM_FORMAT_S16_LE;
+               }
        } else {
                pcm_format = parse_audio_format_i_type(chip, fp, format, fmt);
                if (pcm_format < 0)
@@ -2406,7 +2607,7 @@ static int parse_audio_format_i(snd_usb_audio_t *chip, struct audioformat *fp,
 /*
  * prase the format type II descriptor
  */
-static int parse_audio_format_ii(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format_ii(struct snd_usb_audio *chip, struct audioformat *fp,
                                 int format, unsigned char *fmt)
 {
        int brate, framesize;
@@ -2433,7 +2634,7 @@ static int parse_audio_format_ii(snd_usb_audio_t *chip, struct audioformat *fp,
        return parse_audio_format_rates(chip, fp, fmt, 8); /* fmt[8..] sample rates */
 }
 
-static int parse_audio_format(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format(struct snd_usb_audio *chip, struct audioformat *fp,
                              int format, unsigned char *fmt, int stream)
 {
        int err;
@@ -2455,12 +2656,13 @@ static int parse_audio_format(snd_usb_audio_t *chip, struct audioformat *fp,
        if (err < 0)
                return err;
 #if 1
-       /* FIXME: temporary hack for extigy/audigy 2 nx */
+       /* FIXME: temporary hack for extigy/audigy 2 nx/zs */
        /* extigy apparently supports sample rates other than 48k
         * but not in ordinary way.  so we enable only 48k atm.
         */
        if (chip->usb_id == USB_ID(0x041e, 0x3000) ||
-           chip->usb_id == USB_ID(0x041e, 0x3020)) {
+           chip->usb_id == USB_ID(0x041e, 0x3020) ||
+           chip->usb_id == USB_ID(0x041e, 0x3061)) {
                if (fmt[3] == USB_FORMAT_TYPE_I &&
                    fp->rates != SNDRV_PCM_RATE_48000 &&
                    fp->rates != SNDRV_PCM_RATE_96000)
@@ -2470,7 +2672,9 @@ static int parse_audio_format(snd_usb_audio_t *chip, struct audioformat *fp,
        return 0;
 }
 
-static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
+static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
+                                        int iface, int altno);
+static int parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no)
 {
        struct usb_device *dev;
        struct usb_interface *iface;
@@ -2480,12 +2684,23 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
        int format;
        struct audioformat *fp;
        unsigned char *fmt, *csep;
+       int num;
 
        dev = chip->dev;
 
        /* parse the interface's altsettings */
        iface = usb_ifnum_to_if(dev, iface_no);
-       for (i = 0; i < iface->num_altsetting; i++) {
+
+       num = iface->num_altsetting;
+
+       /*
+        * Dallas DS4201 workaround: It presents 5 altsettings, but the last
+        * one misses syncpipe, and does not produce any sound.
+        */
+       if (chip->usb_id == USB_ID(0x04fa, 0x4201))
+               num = 4;
+
+       for (i = 0; i < num; i++) {
                alts = &iface->altsetting[i];
                altsd = get_iface_desc(alts);
                /* skip invalid one */
@@ -2504,6 +2719,12 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
                stream = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN) ?
                        SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
                altno = altsd->bAlternateSetting;
+       
+               /* audiophile usb: skip altsets incompatible with device_setup
+                */
+               if (chip->usb_id == USB_ID(0x0763, 0x2003) && 
+                   audiophile_skip_setting_quirk(chip, iface_no, altno))
+                       continue;
 
                /* get audio formats */
                fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, AS_GENERAL);
@@ -2539,18 +2760,18 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
                if (!csep && altsd->bNumEndpoints >= 2)
                        csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT);
                if (!csep || csep[0] < 7 || csep[2] != EP_GENERAL) {
-                       snd_printk(KERN_ERR "%d:%u:%d : no or invalid class specific endpoint descriptor\n",
+                       snd_printk(KERN_WARNING "%d:%u:%d : no or invalid"
+                                  " class specific endpoint descriptor\n",
                                   dev->devnum, iface_no, altno);
-                       continue;
+                       csep = NULL;
                }
 
-               fp = kmalloc(sizeof(*fp), GFP_KERNEL);
+               fp = kzalloc(sizeof(*fp), GFP_KERNEL);
                if (! fp) {
                        snd_printk(KERN_ERR "cannot malloc\n");
                        return -ENOMEM;
                }
 
-               memset(fp, 0, sizeof(*fp));
                fp->iface = iface_no;
                fp->altsetting = altno;
                fp->altset_idx = i;
@@ -2560,7 +2781,7 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
                if (snd_usb_get_speed(dev) == USB_SPEED_HIGH)
                        fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1)
                                        * (fp->maxpacksize & 0x7ff);
-               fp->attributes = csep[3];
+               fp->attributes = csep ? csep[3] : 0;
 
                /* some quirks for attributes here */
 
@@ -2598,7 +2819,7 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
                        continue;
                }
 
-               snd_printdd(KERN_INFO "%d:%u:%d: add audio endpoint 0x%x\n", dev->devnum, iface_no, i, fp->endpoint);
+               snd_printdd(KERN_INFO "%d:%u:%d: add audio endpoint 0x%x\n", dev->devnum, iface_no, altno, fp->endpoint);
                err = add_audio_endpoint(chip, stream, fp);
                if (err < 0) {
                        kfree(fp->rate_table);
@@ -2621,10 +2842,10 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
 static void snd_usb_stream_disconnect(struct list_head *head)
 {
        int idx;
-       snd_usb_stream_t *as;
-       snd_usb_substream_t *subs;
+       struct snd_usb_stream *as;
+       struct snd_usb_substream *subs;
 
-       as = list_entry(head, snd_usb_stream_t, list);
+       as = list_entry(head, struct snd_usb_stream, list);
        for (idx = 0; idx < 2; idx++) {
                subs = &as->substream[idx];
                if (!subs->num_formats)
@@ -2637,7 +2858,7 @@ static void snd_usb_stream_disconnect(struct list_head *head)
 /*
  * parse audio control descriptor and create pcm/midi streams
  */
-static int snd_usb_create_streams(snd_usb_audio_t *chip, int ctrlif)
+static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
 {
        struct usb_device *dev = chip->dev;
        struct usb_host_interface *host_iface;
@@ -2692,6 +2913,10 @@ static int snd_usb_create_streams(snd_usb_audio_t *chip, int ctrlif)
                        /* skip non-supported classes */
                        continue;
                }
+               if (snd_usb_get_speed(dev) == USB_SPEED_LOW) {
+                       snd_printk(KERN_ERR "low speed audio streaming not supported\n");
+                       continue;
+               }
                if (! parse_audio_endpoints(chip, j)) {
                        usb_set_interface(dev, j, 0); /* reset the current interface */
                        usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L);
@@ -2704,21 +2929,20 @@ static int snd_usb_create_streams(snd_usb_audio_t *chip, int ctrlif)
 /*
  * create a stream for an endpoint/altsetting without proper descriptors
  */
-static int create_fixed_stream_quirk(snd_usb_audio_t *chip,
+static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
                                     struct usb_interface *iface,
-                                    const snd_usb_audio_quirk_t *quirk)
+                                    const struct snd_usb_audio_quirk *quirk)
 {
        struct audioformat *fp;
        struct usb_host_interface *alts;
        int stream, err;
-       int *rate_table = NULL;
+       unsigned *rate_table = NULL;
 
-       fp = kmalloc(sizeof(*fp), GFP_KERNEL);
+       fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
        if (! fp) {
-               snd_printk(KERN_ERR "cannot malloc\n");
+               snd_printk(KERN_ERR "cannot memdup\n");
                return -ENOMEM;
        }
-       memcpy(fp, quirk->data, sizeof(*fp));
        if (fp->nr_rates > 0) {
                rate_table = kmalloc(sizeof(int) * fp->nr_rates, GFP_KERNEL);
                if (!rate_table) {
@@ -2744,6 +2968,7 @@ static int create_fixed_stream_quirk(snd_usb_audio_t *chip,
                return -EINVAL;
        }
        alts = &iface->altsetting[fp->altset_idx];
+       fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
        usb_set_interface(chip->dev, fp->iface, 0);
        init_usb_pitch(chip->dev, fp->iface, alts, fp);
        init_usb_sample_rate(chip->dev, fp->iface, alts, fp, fp->rate_max);
@@ -2753,9 +2978,9 @@ static int create_fixed_stream_quirk(snd_usb_audio_t *chip,
 /*
  * create a stream for an interface with proper descriptors
  */
-static int create_standard_interface_quirk(snd_usb_audio_t *chip,
-                                          struct usb_interface *iface,
-                                          const snd_usb_audio_quirk_t *quirk)
+static int create_standard_audio_quirk(struct snd_usb_audio *chip,
+                                      struct usb_interface *iface,
+                                      const struct snd_usb_audio_quirk *quirk)
 {
        struct usb_host_interface *alts;
        struct usb_interface_descriptor *altsd;
@@ -2763,34 +2988,24 @@ static int create_standard_interface_quirk(snd_usb_audio_t *chip,
 
        alts = &iface->altsetting[0];
        altsd = get_iface_desc(alts);
-       switch (quirk->type) {
-       case QUIRK_AUDIO_STANDARD_INTERFACE:
-               err = parse_audio_endpoints(chip, altsd->bInterfaceNumber);
-               if (!err)
-                       usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0); /* reset the current interface */
-               break;
-       case QUIRK_MIDI_STANDARD_INTERFACE:
-               err = snd_usb_create_midi_interface(chip, iface, NULL);
-               break;
-       default:
-               snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
-               return -ENXIO;
-       }
+       err = parse_audio_endpoints(chip, altsd->bInterfaceNumber);
        if (err < 0) {
                snd_printk(KERN_ERR "cannot setup if %d: error %d\n",
                           altsd->bInterfaceNumber, err);
                return err;
        }
+       /* reset the current interface */
+       usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0);
        return 0;
 }
 
 /*
- * Create a stream for an Edirol UA-700/UA-25 interface.  The only way
- * to detect the sample rate is by looking at wMaxPacketSize.
+ * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface.  
+ * The only way to detect the sample rate is by looking at wMaxPacketSize.
  */
-static int create_ua700_ua25_quirk(snd_usb_audio_t *chip,
-                                  struct usb_interface *iface,
-                                  const snd_usb_audio_quirk_t *quirk)
+static int create_uaxx_quirk(struct snd_usb_audio *chip,
+                             struct usb_interface *iface,
+                             const struct snd_usb_audio_quirk *quirk)
 {
        static const struct audioformat ua_format = {
                .format = SNDRV_PCM_FORMAT_S24_3LE,
@@ -2805,35 +3020,35 @@ static int create_ua700_ua25_quirk(snd_usb_audio_t *chip,
        struct audioformat *fp;
        int stream, err;
 
-       /* both PCM and MIDI interfaces have 2 altsettings */
-       if (iface->num_altsetting != 2)
+       /* both PCM and MIDI interfaces have 2 or more altsettings */
+       if (iface->num_altsetting < 2)
                return -ENXIO;
        alts = &iface->altsetting[1];
        altsd = get_iface_desc(alts);
 
        if (altsd->bNumEndpoints == 2) {
-               static const snd_usb_midi_endpoint_info_t ua700_ep = {
+               static const struct snd_usb_midi_endpoint_info ua700_ep = {
                        .out_cables = 0x0003,
                        .in_cables  = 0x0003
                };
-               static const snd_usb_audio_quirk_t ua700_quirk = {
+               static const struct snd_usb_audio_quirk ua700_quirk = {
                        .type = QUIRK_MIDI_FIXED_ENDPOINT,
                        .data = &ua700_ep
                };
-               static const snd_usb_midi_endpoint_info_t ua25_ep = {
+               static const struct snd_usb_midi_endpoint_info uaxx_ep = {
                        .out_cables = 0x0001,
                        .in_cables  = 0x0001
                };
-               static const snd_usb_audio_quirk_t ua25_quirk = {
+               static const struct snd_usb_audio_quirk uaxx_quirk = {
                        .type = QUIRK_MIDI_FIXED_ENDPOINT,
-                       .data = &ua25_ep
+                       .data = &uaxx_ep
                };
                if (chip->usb_id == USB_ID(0x0582, 0x002b))
                        return snd_usb_create_midi_interface(chip, iface,
                                                             &ua700_quirk);
                else
                        return snd_usb_create_midi_interface(chip, iface,
-                                                            &ua25_quirk);
+                                                            &uaxx_quirk);
        }
 
        if (altsd->bNumEndpoints != 1)
@@ -2881,9 +3096,9 @@ static int create_ua700_ua25_quirk(snd_usb_audio_t *chip,
 /*
  * Create a stream for an Edirol UA-1000 interface.
  */
-static int create_ua1000_quirk(snd_usb_audio_t *chip,
+static int create_ua1000_quirk(struct snd_usb_audio *chip,
                               struct usb_interface *iface,
-                              const snd_usb_audio_quirk_t *quirk)
+                              const struct snd_usb_audio_quirk *quirk)
 {
        static const struct audioformat ua1000_format = {
                .format = SNDRV_PCM_FORMAT_S32_LE,
@@ -2902,14 +3117,13 @@ static int create_ua1000_quirk(snd_usb_audio_t *chip,
                return -ENXIO;
        alts = &iface->altsetting[1];
        altsd = get_iface_desc(alts);
-       if (alts->extralen != 11 || alts->extra[1] != CS_AUDIO_INTERFACE ||
+       if (alts->extralen != 11 || alts->extra[1] != USB_DT_CS_INTERFACE ||
            altsd->bNumEndpoints != 1)
                return -ENXIO;
 
-       fp = kmalloc(sizeof(*fp), GFP_KERNEL);
+       fp = kmemdup(&ua1000_format, sizeof(*fp), GFP_KERNEL);
        if (!fp)
                return -ENOMEM;
-       memcpy(fp, &ua1000_format, sizeof(*fp));
 
        fp->channels = alts->extra[4];
        fp->iface = altsd->bInterfaceNumber;
@@ -2930,16 +3144,68 @@ static int create_ua1000_quirk(snd_usb_audio_t *chip,
        return 0;
 }
 
-static int snd_usb_create_quirk(snd_usb_audio_t *chip,
+/*
+ * Create a stream for an Edirol UA-101 interface.
+ * Copy, paste and modify from Edirol UA-1000
+ */
+static int create_ua101_quirk(struct snd_usb_audio *chip,
+                              struct usb_interface *iface,
+                              const struct snd_usb_audio_quirk *quirk)
+{
+       static const struct audioformat ua101_format = {
+               .format = SNDRV_PCM_FORMAT_S32_LE,
+               .fmt_type = USB_FORMAT_TYPE_I,
+               .altsetting = 1,
+               .altset_idx = 1,
+               .attributes = 0,
+               .rates = SNDRV_PCM_RATE_CONTINUOUS,
+       };
+       struct usb_host_interface *alts;
+       struct usb_interface_descriptor *altsd;
+       struct audioformat *fp;
+       int stream, err;
+
+       if (iface->num_altsetting != 2)
+               return -ENXIO;
+       alts = &iface->altsetting[1];
+       altsd = get_iface_desc(alts);
+       if (alts->extralen != 18 || alts->extra[1] != USB_DT_CS_INTERFACE ||
+           altsd->bNumEndpoints != 1)
+               return -ENXIO;
+
+       fp = kmemdup(&ua101_format, sizeof(*fp), GFP_KERNEL);
+       if (!fp)
+               return -ENOMEM;
+
+       fp->channels = alts->extra[11];
+       fp->iface = altsd->bInterfaceNumber;
+       fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
+       fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
+       fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
+       fp->rate_max = fp->rate_min = combine_triple(&alts->extra[15]);
+
+       stream = (fp->endpoint & USB_DIR_IN)
+               ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
+       err = add_audio_endpoint(chip, stream, fp);
+       if (err < 0) {
+               kfree(fp);
+               return err;
+       }
+       /* FIXME: playback must be synchronized to capture */
+       usb_set_interface(chip->dev, fp->iface, 0);
+       return 0;
+}
+
+static int snd_usb_create_quirk(struct snd_usb_audio *chip,
                                struct usb_interface *iface,
-                               const snd_usb_audio_quirk_t *quirk);
+                               const struct snd_usb_audio_quirk *quirk);
 
 /*
  * handle the quirks for the contained interfaces
  */
-static int create_composite_quirk(snd_usb_audio_t *chip,
+static int create_composite_quirk(struct snd_usb_audio *chip,
                                  struct usb_interface *iface,
-                                 const snd_usb_audio_quirk_t *quirk)
+                                 const struct snd_usb_audio_quirk *quirk)
 {
        int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
        int err;
@@ -2960,9 +3226,9 @@ static int create_composite_quirk(snd_usb_audio_t *chip,
        return 0;
 }
 
-static int ignore_interface_quirk(snd_usb_audio_t *chip,
+static int ignore_interface_quirk(struct snd_usb_audio *chip,
                                  struct usb_interface *iface,
-                                 const snd_usb_audio_quirk_t *quirk)
+                                 const struct snd_usb_audio_quirk *quirk)
 {
        return 0;
 }
@@ -3016,6 +3282,76 @@ static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
        return 0;
 }
 
+/*
+ * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
+ * documented in the device's data sheet.
+ */
+static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
+{
+       u8 buf[4];
+       buf[0] = 0x20;
+       buf[1] = value & 0xff;
+       buf[2] = (value >> 8) & 0xff;
+       buf[3] = reg;
+       return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
+                              USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
+                              0, 0, &buf, 4, 1000);
+}
+
+static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
+{
+       /*
+        * Enable line-out driver mode, set headphone source to front
+        * channels, enable stereo mic.
+        */
+       return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
+}
+
+
+/*
+ * Setup quirks
+ */
+#define AUDIOPHILE_SET                 0x01 /* if set, parse device_setup */
+#define AUDIOPHILE_SET_DTS              0x02 /* if set, enable DTS Digital Output */
+#define AUDIOPHILE_SET_96K              0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */
+#define AUDIOPHILE_SET_24B             0x08 /* 24bits sample if set, 16bits otherwise */
+#define AUDIOPHILE_SET_DI              0x10 /* if set, enable Digital Input */
+#define AUDIOPHILE_SET_MASK            0x1F /* bit mask for setup value */
+#define AUDIOPHILE_SET_24B_48K_DI      0x19 /* value for 24bits+48KHz+Digital Input */
+#define AUDIOPHILE_SET_24B_48K_NOTDI   0x09 /* value for 24bits+48KHz+No Digital Input */
+#define AUDIOPHILE_SET_16B_48K_DI      0x11 /* value for 16bits+48KHz+Digital Input */
+#define AUDIOPHILE_SET_16B_48K_NOTDI   0x01 /* value for 16bits+48KHz+No Digital Input */
+
+static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
+                                        int iface, int altno)
+{
+       /* Reset ALL ifaces to 0 altsetting.
+        * Call it for every possible altsetting of every interface.
+        */
+       usb_set_interface(chip->dev, iface, 0);
+
+       if (device_setup[chip->index] & AUDIOPHILE_SET) {
+               if ((device_setup[chip->index] & AUDIOPHILE_SET_DTS)
+                   && altno != 6)
+                       return 1; /* skip this altsetting */
+               if ((device_setup[chip->index] & AUDIOPHILE_SET_96K)
+                   && altno != 1)
+                       return 1; /* skip this altsetting */
+               if ((device_setup[chip->index] & AUDIOPHILE_SET_MASK) ==
+                   AUDIOPHILE_SET_24B_48K_DI && altno != 2)
+                       return 1; /* skip this altsetting */
+               if ((device_setup[chip->index] & AUDIOPHILE_SET_MASK) ==
+                   AUDIOPHILE_SET_24B_48K_NOTDI && altno != 3)
+                       return 1; /* skip this altsetting */
+               if ((device_setup[chip->index] & AUDIOPHILE_SET_MASK) ==
+                   AUDIOPHILE_SET_16B_48K_DI && altno != 4)
+                       return 1; /* skip this altsetting */
+               if ((device_setup[chip->index] & AUDIOPHILE_SET_MASK) ==
+                   AUDIOPHILE_SET_16B_48K_NOTDI && altno != 5)
+                       return 1; /* skip this altsetting */
+       }       
+       return 0; /* keep this altsetting */
+}
 
 /*
  * audio-interface quirks
@@ -3025,12 +3361,12 @@ static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
  * after this.
  * returns a negative value at error.
  */
-static int snd_usb_create_quirk(snd_usb_audio_t *chip,
+static int snd_usb_create_quirk(struct snd_usb_audio *chip,
                                struct usb_interface *iface,
-                               const snd_usb_audio_quirk_t *quirk)
+                               const struct snd_usb_audio_quirk *quirk)
 {
-       typedef int (*quirk_func_t)(snd_usb_audio_t *, struct usb_interface *,
-                                   const snd_usb_audio_quirk_t *);
+       typedef int (*quirk_func_t)(struct snd_usb_audio *, struct usb_interface *,
+                                   const struct snd_usb_audio_quirk *);
        static const quirk_func_t quirk_funcs[] = {
                [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
                [QUIRK_COMPOSITE] = create_composite_quirk,
@@ -3041,11 +3377,12 @@ static int snd_usb_create_quirk(snd_usb_audio_t *chip,
                [QUIRK_MIDI_NOVATION] = snd_usb_create_midi_interface,
                [QUIRK_MIDI_RAW] = snd_usb_create_midi_interface,
                [QUIRK_MIDI_EMAGIC] = snd_usb_create_midi_interface,
-               [QUIRK_MIDI_MIDITECH] = snd_usb_create_midi_interface,
-               [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_interface_quirk,
+               [QUIRK_MIDI_CME] = snd_usb_create_midi_interface,
+               [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
                [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
-               [QUIRK_AUDIO_EDIROL_UA700_UA25] = create_ua700_ua25_quirk,
                [QUIRK_AUDIO_EDIROL_UA1000] = create_ua1000_quirk,
+               [QUIRK_AUDIO_EDIROL_UA101] = create_ua101_quirk,
+               [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk
        };
 
        if (quirk->type < QUIRK_TYPE_COUNT) {
@@ -3060,29 +3397,29 @@ static int snd_usb_create_quirk(snd_usb_audio_t *chip,
 /*
  * common proc files to show the usb device info
  */
-static void proc_audio_usbbus_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
+static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
 {
-       snd_usb_audio_t *chip = entry->private_data;
-       if (! chip->shutdown)
+       struct snd_usb_audio *chip = entry->private_data;
+       if (!chip->shutdown)
                snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum);
 }
 
-static void proc_audio_usbid_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
+static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
 {
-       snd_usb_audio_t *chip = entry->private_data;
-       if (! chip->shutdown)
+       struct snd_usb_audio *chip = entry->private_data;
+       if (!chip->shutdown)
                snd_iprintf(buffer, "%04x:%04x\n", 
                            USB_ID_VENDOR(chip->usb_id),
                            USB_ID_PRODUCT(chip->usb_id));
 }
 
-static void snd_usb_audio_create_proc(snd_usb_audio_t *chip)
+static void snd_usb_audio_create_proc(struct snd_usb_audio *chip)
 {
-       snd_info_entry_t *entry;
-       if (! snd_card_proc_new(chip->card, "usbbus", &entry))
-               snd_info_set_text_ops(entry, chip, 1024, proc_audio_usbbus_read);
-       if (! snd_card_proc_new(chip->card, "usbid", &entry))
-               snd_info_set_text_ops(entry, chip, 1024, proc_audio_usbid_read);
+       struct snd_info_entry *entry;
+       if (!snd_card_proc_new(chip->card, "usbbus", &entry))
+               snd_info_set_text_ops(entry, chip, proc_audio_usbbus_read);
+       if (!snd_card_proc_new(chip->card, "usbid", &entry))
+               snd_info_set_text_ops(entry, chip, proc_audio_usbid_read);
 }
 
 /*
@@ -3092,15 +3429,15 @@ static void snd_usb_audio_create_proc(snd_usb_audio_t *chip)
  *
  */
 
-static int snd_usb_audio_free(snd_usb_audio_t *chip)
+static int snd_usb_audio_free(struct snd_usb_audio *chip)
 {
        kfree(chip);
        return 0;
 }
 
-static int snd_usb_audio_dev_free(snd_device_t *device)
+static int snd_usb_audio_dev_free(struct snd_device *device)
 {
-       snd_usb_audio_t *chip = device->device_data;
+       struct snd_usb_audio *chip = device->device_data;
        return snd_usb_audio_free(chip);
 }
 
@@ -3109,32 +3446,33 @@ static int snd_usb_audio_dev_free(snd_device_t *device)
  * create a chip instance and set its names.
  */
 static int snd_usb_audio_create(struct usb_device *dev, int idx,
-                               const snd_usb_audio_quirk_t *quirk,
-                               snd_usb_audio_t **rchip)
+                               const struct snd_usb_audio_quirk *quirk,
+                               struct snd_usb_audio **rchip)
 {
-       snd_card_t *card;
-       snd_usb_audio_t *chip;
+       struct snd_card *card;
+       struct snd_usb_audio *chip;
        int err, len;
        char component[14];
-       static snd_device_ops_t ops = {
+       static struct snd_device_ops ops = {
                .dev_free =     snd_usb_audio_dev_free,
        };
 
        *rchip = NULL;
 
-       if (snd_usb_get_speed(dev) != USB_SPEED_FULL &&
+       if (snd_usb_get_speed(dev) != USB_SPEED_LOW &&
+           snd_usb_get_speed(dev) != USB_SPEED_FULL &&
            snd_usb_get_speed(dev) != USB_SPEED_HIGH) {
                snd_printk(KERN_ERR "unknown device speed %d\n", snd_usb_get_speed(dev));
                return -ENXIO;
        }
 
-       card = snd_card_new(index[idx], id[idx], THIS_MODULE, 0);
-       if (card == NULL) {
+       err = snd_card_create(index[idx], id[idx], THIS_MODULE, 0, &card);
+       if (err < 0) {
                snd_printk(KERN_ERR "cannot create card instance %d\n", idx);
-               return -ENOMEM;
+               return err;
        }
 
-       chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
+       chip = kzalloc(sizeof(*chip), GFP_KERNEL);
        if (! chip) {
                snd_card_free(card);
                return -ENOMEM;
@@ -3196,7 +3534,9 @@ static int snd_usb_audio_create(struct usb_device *dev, int idx,
                usb_make_path(dev, card->longname + len, sizeof(card->longname) - len);
 
        strlcat(card->longname,
-               snd_usb_get_speed(dev) == USB_SPEED_FULL ? ", full speed" : ", high speed",
+               snd_usb_get_speed(dev) == USB_SPEED_LOW ? ", low speed" :
+               snd_usb_get_speed(dev) == USB_SPEED_FULL ? ", full speed" :
+               ", high speed",
                sizeof(card->longname));
 
        snd_usb_audio_create_proc(chip);
@@ -3220,10 +3560,9 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
                                 struct usb_interface *intf,
                                 const struct usb_device_id *usb_id)
 {
-       struct usb_host_config *config = dev->actconfig;
-       const snd_usb_audio_quirk_t *quirk = (const snd_usb_audio_quirk_t *)usb_id->driver_info;
+       const struct snd_usb_audio_quirk *quirk = (const struct snd_usb_audio_quirk *)usb_id->driver_info;
        int i, err;
-       snd_usb_audio_t *chip;
+       struct snd_usb_audio *chip;
        struct usb_host_interface *alts;
        int ifnum;
        u32 id;
@@ -3241,7 +3580,6 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
        if (id == USB_ID(0x041e, 0x3000)) {
                if (snd_usb_extigy_boot_quirk(dev, intf) < 0)
                        goto __err_val;
-               config = dev->actconfig;
        }
        /* SB Audigy 2 NX needs its own boot-up magic, too */
        if (id == USB_ID(0x041e, 0x3020)) {
@@ -3249,13 +3587,19 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
                        goto __err_val;
        }
 
+       /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
+       if (id == USB_ID(0x10f5, 0x0200)) {
+               if (snd_usb_cm106_boot_quirk(dev) < 0)
+                       goto __err_val;
+       }
+
        /*
         * found a config.  now register to ALSA
         */
 
        /* check whether it's already registered */
        chip = NULL;
-       down(&register_mutex);
+       mutex_lock(&register_mutex);
        for (i = 0; i < SNDRV_CARDS; i++) {
                if (usb_chip[i] && usb_chip[i]->dev == dev) {
                        if (usb_chip[i]->shutdown) {
@@ -3270,11 +3614,6 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
                /* it's a fresh one.
                 * now look for an empty slot and create a new card instance
                 */
-               /* first, set the current configuration for this device */
-               if (usb_reset_configuration(dev) < 0) {
-                       snd_printk(KERN_ERR "cannot reset configuration (value 0x%x)\n", get_cfg_desc(config)->bConfigurationValue);
-                       goto __error;
-               }
                for (i = 0; i < SNDRV_CARDS; i++)
                        if (enable[i] && ! usb_chip[i] &&
                            (vid[i] == -1 || vid[i] == USB_ID_VENDOR(id)) &&
@@ -3285,8 +3624,8 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
                                snd_card_set_dev(chip->card, &intf->dev);
                                break;
                        }
-               if (! chip) {
-                       snd_printk(KERN_ERR "no available usb audio device\n");
+               if (!chip) {
+                       printk(KERN_ERR "no available usb audio device\n");
                        goto __error;
                }
        }
@@ -3301,7 +3640,7 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
        if (err > 0) {
                /* create normal USB audio interfaces */
                if (snd_usb_create_streams(chip, ifnum) < 0 ||
-                   snd_usb_create_mixer(chip, ifnum) < 0) {
+                   snd_usb_create_mixer(chip, ifnum, ignore_ctl_error) < 0) {
                        goto __error;
                }
        }
@@ -3313,13 +3652,13 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
 
        usb_chip[chip->index] = chip;
        chip->num_interfaces++;
-       up(&register_mutex);
+       mutex_unlock(&register_mutex);
        return chip;
 
  __error:
        if (chip && !chip->num_interfaces)
                snd_card_free(chip->card);
-       up(&register_mutex);
+       mutex_unlock(&register_mutex);
  __err_val:
        return NULL;
 }
@@ -3330,8 +3669,8 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
  */
 static void snd_usb_audio_disconnect(struct usb_device *dev, void *ptr)
 {
-       snd_usb_audio_t *chip;
-       snd_card_t *card;
+       struct snd_usb_audio *chip;
+       struct snd_card *card;
        struct list_head *p;
 
        if (ptr == (void *)-1L)
@@ -3339,7 +3678,7 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, void *ptr)
 
        chip = ptr;
        card = chip->card;
-       down(&register_mutex);
+       mutex_lock(&register_mutex);
        chip->shutdown = 1;
        chip->num_interfaces--;
        if (chip->num_interfaces <= 0) {
@@ -3357,10 +3696,10 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, void *ptr)
                        snd_usb_mixer_disconnect(p);
                }
                usb_chip[chip->index] = NULL;
-               up(&register_mutex);
-               snd_card_free(card);
+               mutex_unlock(&register_mutex);
+               snd_card_free_when_closed(card);
        } else {
-               up(&register_mutex);
+               mutex_unlock(&register_mutex);
        }
 }
 
@@ -3373,7 +3712,7 @@ static int usb_audio_probe(struct usb_interface *intf,
        void *chip;
        chip = snd_usb_audio_probe(interface_to_usbdev(intf), intf, id);
        if (chip) {
-               dev_set_drvdata(&intf->dev, chip);
+               usb_set_intfdata(intf, chip);
                return 0;
        } else
                return -EIO;
@@ -3382,9 +3721,48 @@ static int usb_audio_probe(struct usb_interface *intf,
 static void usb_audio_disconnect(struct usb_interface *intf)
 {
        snd_usb_audio_disconnect(interface_to_usbdev(intf),
-                                dev_get_drvdata(&intf->dev));
+                                usb_get_intfdata(intf));
+}
+
+#ifdef CONFIG_PM
+static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
+{
+       struct snd_usb_audio *chip = usb_get_intfdata(intf);
+       struct list_head *p;
+       struct snd_usb_stream *as;
+
+       if (chip == (void *)-1L)
+               return 0;
+
+       snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
+       if (!chip->num_suspended_intf++) {
+               list_for_each(p, &chip->pcm_list) {
+                       as = list_entry(p, struct snd_usb_stream, list);
+                       snd_pcm_suspend_all(as->pcm);
+               }
+       }
+
+       return 0;
 }
 
+static int usb_audio_resume(struct usb_interface *intf)
+{
+       struct snd_usb_audio *chip = usb_get_intfdata(intf);
+
+       if (chip == (void *)-1L)
+               return 0;
+       if (--chip->num_suspended_intf)
+               return 0;
+       /*
+        * ALSA leaves material resumption to user space
+        * we just notify
+        */
+
+       snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
+
+       return 0;
+}
+#endif         /* CONFIG_PM */
 
 static int __init snd_usb_audio_init(void)
 {
@@ -3392,8 +3770,7 @@ static int __init snd_usb_audio_init(void)
                printk(KERN_WARNING "invalid nrpacks value.\n");
                return -EINVAL;
        }
-       usb_register(&usb_audio_driver);
-       return 0;
+       return usb_register(&usb_audio_driver);
 }