diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/usb/usx2y/usbusx2yaudio.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/usb/usx2y/usbusx2yaudio.c | 1028 |
1 files changed, 0 insertions, 1028 deletions
diff --git a/ANDROID_3.4.5/sound/usb/usx2y/usbusx2yaudio.c b/ANDROID_3.4.5/sound/usb/usx2y/usbusx2yaudio.c deleted file mode 100644 index 520ef96d..00000000 --- a/ANDROID_3.4.5/sound/usb/usx2y/usbusx2yaudio.c +++ /dev/null @@ -1,1028 +0,0 @@ -/* - * US-X2Y AUDIO - * Copyright (c) 2002-2004 by Karsten Wiese - * - * based on - * - * (Tentative) USB Audio Driver for ALSA - * - * Main and PCM part - * - * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> - * - * Many codes borrowed from audio.c by - * Alan Cox (alan@lxorguk.ukuu.org.uk) - * Thomas Sailer (sailer@ife.ee.ethz.ch) - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - - -#include <linux/interrupt.h> -#include <linux/slab.h> -#include <linux/usb.h> -#include <linux/moduleparam.h> -#include <sound/core.h> -#include <sound/info.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include "usx2y.h" -#include "usbusx2y.h" - -#define USX2Y_NRPACKS 4 /* Default value used for nr of packs per urb. - 1 to 4 have been tested ok on uhci. - To use 3 on ohci, you'd need a patch: - look for "0000425-linux-2.6.9-rc4-mm1_ohci-hcd.patch.gz" on - "https://bugtrack.alsa-project.org/alsa-bug/bug_view_page.php?bug_id=0000425" - . - 1, 2 and 4 work out of the box on ohci, if I recall correctly. - Bigger is safer operation, - smaller gives lower latencies. - */ -#define USX2Y_NRPACKS_VARIABLE y /* If your system works ok with this module's parameter - nrpacks set to 1, you might as well comment - this #define out, and thereby produce smaller, faster code. - You'd also set USX2Y_NRPACKS to 1 then. - */ - -#ifdef USX2Y_NRPACKS_VARIABLE - static int nrpacks = USX2Y_NRPACKS; /* number of packets per urb */ - #define nr_of_packs() nrpacks - module_param(nrpacks, int, 0444); - MODULE_PARM_DESC(nrpacks, "Number of packets per URB."); -#else - #define nr_of_packs() USX2Y_NRPACKS -#endif - - -static int usX2Y_urb_capt_retire(struct snd_usX2Y_substream *subs) -{ - struct urb *urb = subs->completed_urb; - struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; - unsigned char *cp; - int i, len, lens = 0, hwptr_done = subs->hwptr_done; - struct usX2Ydev *usX2Y = subs->usX2Y; - - for (i = 0; i < nr_of_packs(); i++) { - cp = (unsigned char*)urb->transfer_buffer + urb->iso_frame_desc[i].offset; - if (urb->iso_frame_desc[i].status) { /* active? hmm, skip this */ - snd_printk(KERN_ERR "active frame status %i. " - "Most probably some hardware problem.\n", - urb->iso_frame_desc[i].status); - return urb->iso_frame_desc[i].status; - } - len = urb->iso_frame_desc[i].actual_length / usX2Y->stride; - if (! len) { - snd_printd("0 == len ERROR!\n"); - continue; - } - - /* copy a data chunk */ - if ((hwptr_done + len) > runtime->buffer_size) { - int cnt = runtime->buffer_size - hwptr_done; - int blen = cnt * usX2Y->stride; - memcpy(runtime->dma_area + hwptr_done * usX2Y->stride, cp, blen); - memcpy(runtime->dma_area, cp + blen, len * usX2Y->stride - blen); - } else { - memcpy(runtime->dma_area + hwptr_done * usX2Y->stride, cp, - len * usX2Y->stride); - } - lens += len; - if ((hwptr_done += len) >= runtime->buffer_size) - hwptr_done -= runtime->buffer_size; - } - - subs->hwptr_done = hwptr_done; - subs->transfer_done += lens; - /* update the pointer, call callback if necessary */ - if (subs->transfer_done >= runtime->period_size) { - subs->transfer_done -= runtime->period_size; - snd_pcm_period_elapsed(subs->pcm_substream); - } - return 0; -} -/* - * prepare urb for playback data pipe - * - * we copy the data directly from the pcm buffer. - * the current position to be copied is held in hwptr field. - * since a urb can handle only a single linear buffer, if the total - * transferred area overflows the buffer boundary, we cannot send - * it directly from the buffer. thus the data is once copied to - * a temporary buffer and urb points to that. - */ -static int usX2Y_urb_play_prepare(struct snd_usX2Y_substream *subs, - struct urb *cap_urb, - struct urb *urb) -{ - int count, counts, pack; - struct usX2Ydev *usX2Y = subs->usX2Y; - struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; - - count = 0; - for (pack = 0; pack < nr_of_packs(); pack++) { - /* calculate the size of a packet */ - counts = cap_urb->iso_frame_desc[pack].actual_length / usX2Y->stride; - count += counts; - if (counts < 43 || counts > 50) { - snd_printk(KERN_ERR "should not be here with counts=%i\n", counts); - return -EPIPE; - } - /* set up descriptor */ - urb->iso_frame_desc[pack].offset = pack ? - urb->iso_frame_desc[pack - 1].offset + - urb->iso_frame_desc[pack - 1].length : - 0; - urb->iso_frame_desc[pack].length = cap_urb->iso_frame_desc[pack].actual_length; - } - if (atomic_read(&subs->state) >= state_PRERUNNING) - if (subs->hwptr + count > runtime->buffer_size) { - /* err, the transferred area goes over buffer boundary. - * copy the data to the temp buffer. - */ - int len; - len = runtime->buffer_size - subs->hwptr; - urb->transfer_buffer = subs->tmpbuf; - memcpy(subs->tmpbuf, runtime->dma_area + - subs->hwptr * usX2Y->stride, len * usX2Y->stride); - memcpy(subs->tmpbuf + len * usX2Y->stride, - runtime->dma_area, (count - len) * usX2Y->stride); - subs->hwptr += count; - subs->hwptr -= runtime->buffer_size; - } else { - /* set the buffer pointer */ - urb->transfer_buffer = runtime->dma_area + subs->hwptr * usX2Y->stride; - if ((subs->hwptr += count) >= runtime->buffer_size) - subs->hwptr -= runtime->buffer_size; - } - else - urb->transfer_buffer = subs->tmpbuf; - urb->transfer_buffer_length = count * usX2Y->stride; - return 0; -} - -/* - * process after playback data complete - * - * update the current position and call callback if a period is processed. - */ -static void usX2Y_urb_play_retire(struct snd_usX2Y_substream *subs, struct urb *urb) -{ - struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; - int len = urb->actual_length / subs->usX2Y->stride; - - subs->transfer_done += len; - subs->hwptr_done += len; - if (subs->hwptr_done >= runtime->buffer_size) - subs->hwptr_done -= runtime->buffer_size; - if (subs->transfer_done >= runtime->period_size) { - subs->transfer_done -= runtime->period_size; - snd_pcm_period_elapsed(subs->pcm_substream); - } -} - -static int usX2Y_urb_submit(struct snd_usX2Y_substream *subs, struct urb *urb, int frame) -{ - int err; - if (!urb) - return -ENODEV; - urb->start_frame = (frame + NRURBS * nr_of_packs()); // let hcd do rollover sanity checks - urb->hcpriv = NULL; - urb->dev = subs->usX2Y->dev; /* we need to set this at each time */ - if ((err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { - snd_printk(KERN_ERR "usb_submit_urb() returned %i\n", err); - return err; - } - return 0; -} - -static inline int usX2Y_usbframe_complete(struct snd_usX2Y_substream *capsubs, - struct snd_usX2Y_substream *playbacksubs, - int frame) -{ - int err, state; - struct urb *urb = playbacksubs->completed_urb; - - state = atomic_read(&playbacksubs->state); - if (NULL != urb) { - if (state == state_RUNNING) - usX2Y_urb_play_retire(playbacksubs, urb); - else if (state >= state_PRERUNNING) - atomic_inc(&playbacksubs->state); - } else { - switch (state) { - case state_STARTING1: - urb = playbacksubs->urb[0]; - atomic_inc(&playbacksubs->state); - break; - case state_STARTING2: - urb = playbacksubs->urb[1]; - atomic_inc(&playbacksubs->state); - break; - } - } - if (urb) { - if ((err = usX2Y_urb_play_prepare(playbacksubs, capsubs->completed_urb, urb)) || - (err = usX2Y_urb_submit(playbacksubs, urb, frame))) { - return err; - } - } - - playbacksubs->completed_urb = NULL; - - state = atomic_read(&capsubs->state); - if (state >= state_PREPARED) { - if (state == state_RUNNING) { - if ((err = usX2Y_urb_capt_retire(capsubs))) - return err; - } else if (state >= state_PRERUNNING) - atomic_inc(&capsubs->state); - if ((err = usX2Y_urb_submit(capsubs, capsubs->completed_urb, frame))) - return err; - } - capsubs->completed_urb = NULL; - return 0; -} - - -static void usX2Y_clients_stop(struct usX2Ydev *usX2Y) -{ - int s, u; - - for (s = 0; s < 4; s++) { - struct snd_usX2Y_substream *subs = usX2Y->subs[s]; - if (subs) { - snd_printdd("%i %p state=%i\n", s, subs, atomic_read(&subs->state)); - atomic_set(&subs->state, state_STOPPED); - } - } - for (s = 0; s < 4; s++) { - struct snd_usX2Y_substream *subs = usX2Y->subs[s]; - if (subs) { - if (atomic_read(&subs->state) >= state_PRERUNNING) { - snd_pcm_stop(subs->pcm_substream, SNDRV_PCM_STATE_XRUN); - } - for (u = 0; u < NRURBS; u++) { - struct urb *urb = subs->urb[u]; - if (NULL != urb) - snd_printdd("%i status=%i start_frame=%i\n", - u, urb->status, urb->start_frame); - } - } - } - usX2Y->prepare_subs = NULL; - wake_up(&usX2Y->prepare_wait_queue); -} - -static void usX2Y_error_urb_status(struct usX2Ydev *usX2Y, - struct snd_usX2Y_substream *subs, struct urb *urb) -{ - snd_printk(KERN_ERR "ep=%i stalled with status=%i\n", subs->endpoint, urb->status); - urb->status = 0; - usX2Y_clients_stop(usX2Y); -} - -static void usX2Y_error_sequence(struct usX2Ydev *usX2Y, - struct snd_usX2Y_substream *subs, struct urb *urb) -{ - snd_printk(KERN_ERR -"Sequence Error!(hcd_frame=%i ep=%i%s;wait=%i,frame=%i).\n" -"Most probably some urb of usb-frame %i is still missing.\n" -"Cause could be too long delays in usb-hcd interrupt handling.\n", - usb_get_current_frame_number(usX2Y->dev), - subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", - usX2Y->wait_iso_frame, urb->start_frame, usX2Y->wait_iso_frame); - usX2Y_clients_stop(usX2Y); -} - -static void i_usX2Y_urb_complete(struct urb *urb) -{ - struct snd_usX2Y_substream *subs = urb->context; - struct usX2Ydev *usX2Y = subs->usX2Y; - - if (unlikely(atomic_read(&subs->state) < state_PREPARED)) { - snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n", - usb_get_current_frame_number(usX2Y->dev), - subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", - urb->status, urb->start_frame); - return; - } - if (unlikely(urb->status)) { - usX2Y_error_urb_status(usX2Y, subs, urb); - return; - } - if (likely((urb->start_frame & 0xFFFF) == (usX2Y->wait_iso_frame & 0xFFFF))) - subs->completed_urb = urb; - else { - usX2Y_error_sequence(usX2Y, subs, urb); - return; - } - { - struct snd_usX2Y_substream *capsubs = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE], - *playbacksubs = usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]; - if (capsubs->completed_urb && - atomic_read(&capsubs->state) >= state_PREPARED && - (playbacksubs->completed_urb || - atomic_read(&playbacksubs->state) < state_PREPARED)) { - if (!usX2Y_usbframe_complete(capsubs, playbacksubs, urb->start_frame)) - usX2Y->wait_iso_frame += nr_of_packs(); - else { - snd_printdd("\n"); - usX2Y_clients_stop(usX2Y); - } - } - } -} - -static void usX2Y_urbs_set_complete(struct usX2Ydev * usX2Y, - void (*complete)(struct urb *)) -{ - int s, u; - for (s = 0; s < 4; s++) { - struct snd_usX2Y_substream *subs = usX2Y->subs[s]; - if (NULL != subs) - for (u = 0; u < NRURBS; u++) { - struct urb * urb = subs->urb[u]; - if (NULL != urb) - urb->complete = complete; - } - } -} - -static void usX2Y_subs_startup_finish(struct usX2Ydev * usX2Y) -{ - usX2Y_urbs_set_complete(usX2Y, i_usX2Y_urb_complete); - usX2Y->prepare_subs = NULL; -} - -static void i_usX2Y_subs_startup(struct urb *urb) -{ - struct snd_usX2Y_substream *subs = urb->context; - struct usX2Ydev *usX2Y = subs->usX2Y; - struct snd_usX2Y_substream *prepare_subs = usX2Y->prepare_subs; - if (NULL != prepare_subs) - if (urb->start_frame == prepare_subs->urb[0]->start_frame) { - usX2Y_subs_startup_finish(usX2Y); - atomic_inc(&prepare_subs->state); - wake_up(&usX2Y->prepare_wait_queue); - } - - i_usX2Y_urb_complete(urb); -} - -static void usX2Y_subs_prepare(struct snd_usX2Y_substream *subs) -{ - snd_printdd("usX2Y_substream_prepare(%p) ep=%i urb0=%p urb1=%p\n", - subs, subs->endpoint, subs->urb[0], subs->urb[1]); - /* reset the pointer */ - subs->hwptr = 0; - subs->hwptr_done = 0; - subs->transfer_done = 0; -} - - -static void usX2Y_urb_release(struct urb **urb, int free_tb) -{ - if (*urb) { - usb_kill_urb(*urb); - if (free_tb) - kfree((*urb)->transfer_buffer); - usb_free_urb(*urb); - *urb = NULL; - } -} -/* - * release a substreams urbs - */ -static void usX2Y_urbs_release(struct snd_usX2Y_substream *subs) -{ - int i; - snd_printdd("usX2Y_urbs_release() %i\n", subs->endpoint); - for (i = 0; i < NRURBS; i++) - usX2Y_urb_release(subs->urb + i, - subs != subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]); - - kfree(subs->tmpbuf); - subs->tmpbuf = NULL; -} -/* - * initialize a substream's urbs - */ -static int usX2Y_urbs_allocate(struct snd_usX2Y_substream *subs) -{ - int i; - unsigned int pipe; - int is_playback = subs == subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]; - struct usb_device *dev = subs->usX2Y->dev; - - pipe = is_playback ? usb_sndisocpipe(dev, subs->endpoint) : - usb_rcvisocpipe(dev, subs->endpoint); - subs->maxpacksize = usb_maxpacket(dev, pipe, is_playback); - if (!subs->maxpacksize) - return -EINVAL; - - if (is_playback && NULL == subs->tmpbuf) { /* allocate a temporary buffer for playback */ - subs->tmpbuf = kcalloc(nr_of_packs(), subs->maxpacksize, GFP_KERNEL); - if (NULL == subs->tmpbuf) { - snd_printk(KERN_ERR "cannot malloc tmpbuf\n"); - return -ENOMEM; - } - } - /* allocate and initialize data urbs */ - for (i = 0; i < NRURBS; i++) { - struct urb **purb = subs->urb + i; - if (*purb) { - usb_kill_urb(*purb); - continue; - } - *purb = usb_alloc_urb(nr_of_packs(), GFP_KERNEL); - if (NULL == *purb) { - usX2Y_urbs_release(subs); - return -ENOMEM; - } - if (!is_playback && !(*purb)->transfer_buffer) { - /* allocate a capture buffer per urb */ - (*purb)->transfer_buffer = kmalloc(subs->maxpacksize * nr_of_packs(), GFP_KERNEL); - if (NULL == (*purb)->transfer_buffer) { - usX2Y_urbs_release(subs); - return -ENOMEM; - } - } - (*purb)->dev = dev; - (*purb)->pipe = pipe; - (*purb)->number_of_packets = nr_of_packs(); - (*purb)->context = subs; - (*purb)->interval = 1; - (*purb)->complete = i_usX2Y_subs_startup; - } - return 0; -} - -static void usX2Y_subs_startup(struct snd_usX2Y_substream *subs) -{ - struct usX2Ydev *usX2Y = subs->usX2Y; - usX2Y->prepare_subs = subs; - subs->urb[0]->start_frame = -1; - wmb(); - usX2Y_urbs_set_complete(usX2Y, i_usX2Y_subs_startup); -} - -static int usX2Y_urbs_start(struct snd_usX2Y_substream *subs) -{ - int i, err; - struct usX2Ydev *usX2Y = subs->usX2Y; - - if ((err = usX2Y_urbs_allocate(subs)) < 0) - return err; - subs->completed_urb = NULL; - for (i = 0; i < 4; i++) { - struct snd_usX2Y_substream *subs = usX2Y->subs[i]; - if (subs != NULL && atomic_read(&subs->state) >= state_PREPARED) - goto start; - } - - start: - usX2Y_subs_startup(subs); - for (i = 0; i < NRURBS; i++) { - struct urb *urb = subs->urb[i]; - if (usb_pipein(urb->pipe)) { - unsigned long pack; - if (0 == i) - atomic_set(&subs->state, state_STARTING3); - urb->dev = usX2Y->dev; - urb->transfer_flags = URB_ISO_ASAP; - for (pack = 0; pack < nr_of_packs(); pack++) { - urb->iso_frame_desc[pack].offset = subs->maxpacksize * pack; - urb->iso_frame_desc[pack].length = subs->maxpacksize; - } - urb->transfer_buffer_length = subs->maxpacksize * nr_of_packs(); - if ((err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { - snd_printk (KERN_ERR "cannot submit datapipe for urb %d, err = %d\n", i, err); - err = -EPIPE; - goto cleanup; - } else - if (i == 0) - usX2Y->wait_iso_frame = urb->start_frame; - urb->transfer_flags = 0; - } else { - atomic_set(&subs->state, state_STARTING1); - break; - } - } - err = 0; - wait_event(usX2Y->prepare_wait_queue, NULL == usX2Y->prepare_subs); - if (atomic_read(&subs->state) != state_PREPARED) - err = -EPIPE; - - cleanup: - if (err) { - usX2Y_subs_startup_finish(usX2Y); - usX2Y_clients_stop(usX2Y); // something is completely wroong > stop evrything - } - return err; -} - -/* - * return the current pcm pointer. just return the hwptr_done value. - */ -static snd_pcm_uframes_t snd_usX2Y_pcm_pointer(struct snd_pcm_substream *substream) -{ - struct snd_usX2Y_substream *subs = substream->runtime->private_data; - return subs->hwptr_done; -} -/* - * start/stop substream - */ -static int snd_usX2Y_pcm_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct snd_usX2Y_substream *subs = substream->runtime->private_data; - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - snd_printdd("snd_usX2Y_pcm_trigger(START)\n"); - if (atomic_read(&subs->state) == state_PREPARED && - atomic_read(&subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]->state) >= state_PREPARED) { - atomic_set(&subs->state, state_PRERUNNING); - } else { - snd_printdd("\n"); - return -EPIPE; - } - break; - case SNDRV_PCM_TRIGGER_STOP: - snd_printdd("snd_usX2Y_pcm_trigger(STOP)\n"); - if (atomic_read(&subs->state) >= state_PRERUNNING) - atomic_set(&subs->state, state_PREPARED); - break; - default: - return -EINVAL; - } - return 0; -} - - -/* - * allocate a buffer, setup samplerate - * - * so far we use a physically linear buffer although packetize transfer - * doesn't need a continuous area. - * if sg buffer is supported on the later version of alsa, we'll follow - * that. - */ -static struct s_c2 -{ - char c1, c2; -} - SetRate44100[] = -{ - { 0x14, 0x08}, // this line sets 44100, well actually a little less - { 0x18, 0x40}, // only tascam / frontier design knows the further lines ....... - { 0x18, 0x42}, - { 0x18, 0x45}, - { 0x18, 0x46}, - { 0x18, 0x48}, - { 0x18, 0x4A}, - { 0x18, 0x4C}, - { 0x18, 0x4E}, - { 0x18, 0x50}, - { 0x18, 0x52}, - { 0x18, 0x54}, - { 0x18, 0x56}, - { 0x18, 0x58}, - { 0x18, 0x5A}, - { 0x18, 0x5C}, - { 0x18, 0x5E}, - { 0x18, 0x60}, - { 0x18, 0x62}, - { 0x18, 0x64}, - { 0x18, 0x66}, - { 0x18, 0x68}, - { 0x18, 0x6A}, - { 0x18, 0x6C}, - { 0x18, 0x6E}, - { 0x18, 0x70}, - { 0x18, 0x72}, - { 0x18, 0x74}, - { 0x18, 0x76}, - { 0x18, 0x78}, - { 0x18, 0x7A}, - { 0x18, 0x7C}, - { 0x18, 0x7E} -}; -static struct s_c2 SetRate48000[] = -{ - { 0x14, 0x09}, // this line sets 48000, well actually a little less - { 0x18, 0x40}, // only tascam / frontier design knows the further lines ....... - { 0x18, 0x42}, - { 0x18, 0x45}, - { 0x18, 0x46}, - { 0x18, 0x48}, - { 0x18, 0x4A}, - { 0x18, 0x4C}, - { 0x18, 0x4E}, - { 0x18, 0x50}, - { 0x18, 0x52}, - { 0x18, 0x54}, - { 0x18, 0x56}, - { 0x18, 0x58}, - { 0x18, 0x5A}, - { 0x18, 0x5C}, - { 0x18, 0x5E}, - { 0x18, 0x60}, - { 0x18, 0x62}, - { 0x18, 0x64}, - { 0x18, 0x66}, - { 0x18, 0x68}, - { 0x18, 0x6A}, - { 0x18, 0x6C}, - { 0x18, 0x6E}, - { 0x18, 0x70}, - { 0x18, 0x73}, - { 0x18, 0x74}, - { 0x18, 0x76}, - { 0x18, 0x78}, - { 0x18, 0x7A}, - { 0x18, 0x7C}, - { 0x18, 0x7E} -}; -#define NOOF_SETRATE_URBS ARRAY_SIZE(SetRate48000) - -static void i_usX2Y_04Int(struct urb *urb) -{ - struct usX2Ydev *usX2Y = urb->context; - - if (urb->status) - snd_printk(KERN_ERR "snd_usX2Y_04Int() urb->status=%i\n", urb->status); - if (0 == --usX2Y->US04->len) - wake_up(&usX2Y->In04WaitQueue); -} - -static int usX2Y_rate_set(struct usX2Ydev *usX2Y, int rate) -{ - int err = 0, i; - struct snd_usX2Y_urbSeq *us = NULL; - int *usbdata = NULL; - struct s_c2 *ra = rate == 48000 ? SetRate48000 : SetRate44100; - - if (usX2Y->rate != rate) { - us = kzalloc(sizeof(*us) + sizeof(struct urb*) * NOOF_SETRATE_URBS, GFP_KERNEL); - if (NULL == us) { - err = -ENOMEM; - goto cleanup; - } - usbdata = kmalloc(sizeof(int) * NOOF_SETRATE_URBS, GFP_KERNEL); - if (NULL == usbdata) { - err = -ENOMEM; - goto cleanup; - } - for (i = 0; i < NOOF_SETRATE_URBS; ++i) { - if (NULL == (us->urb[i] = usb_alloc_urb(0, GFP_KERNEL))) { - err = -ENOMEM; - goto cleanup; - } - ((char*)(usbdata + i))[0] = ra[i].c1; - ((char*)(usbdata + i))[1] = ra[i].c2; - usb_fill_bulk_urb(us->urb[i], usX2Y->dev, usb_sndbulkpipe(usX2Y->dev, 4), - usbdata + i, 2, i_usX2Y_04Int, usX2Y); -#ifdef OLD_USB - us->urb[i]->transfer_flags = USB_QUEUE_BULK; -#endif - } - us->submitted = 0; - us->len = NOOF_SETRATE_URBS; - usX2Y->US04 = us; - wait_event_timeout(usX2Y->In04WaitQueue, 0 == us->len, HZ); - usX2Y->US04 = NULL; - if (us->len) - err = -ENODEV; - cleanup: - if (us) { - us->submitted = 2*NOOF_SETRATE_URBS; - for (i = 0; i < NOOF_SETRATE_URBS; ++i) { - struct urb *urb = us->urb[i]; - if (urb->status) { - if (!err) - err = -ENODEV; - usb_kill_urb(urb); - } - usb_free_urb(urb); - } - usX2Y->US04 = NULL; - kfree(usbdata); - kfree(us); - if (!err) - usX2Y->rate = rate; - } - } - - return err; -} - - -static int usX2Y_format_set(struct usX2Ydev *usX2Y, snd_pcm_format_t format) -{ - int alternate, err; - struct list_head* p; - if (format == SNDRV_PCM_FORMAT_S24_3LE) { - alternate = 2; - usX2Y->stride = 6; - } else { - alternate = 1; - usX2Y->stride = 4; - } - list_for_each(p, &usX2Y->midi_list) { - snd_usbmidi_input_stop(p); - } - usb_kill_urb(usX2Y->In04urb); - if ((err = usb_set_interface(usX2Y->dev, 0, alternate))) { - snd_printk(KERN_ERR "usb_set_interface error \n"); - return err; - } - usX2Y->In04urb->dev = usX2Y->dev; - err = usb_submit_urb(usX2Y->In04urb, GFP_KERNEL); - list_for_each(p, &usX2Y->midi_list) { - snd_usbmidi_input_start(p); - } - usX2Y->format = format; - usX2Y->rate = 0; - return err; -} - - -static int snd_usX2Y_pcm_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - int err = 0; - unsigned int rate = params_rate(hw_params); - snd_pcm_format_t format = params_format(hw_params); - struct snd_card *card = substream->pstr->pcm->card; - struct list_head *list; - - snd_printdd("snd_usX2Y_hw_params(%p, %p)\n", substream, hw_params); - // all pcm substreams off one usX2Y have to operate at the same rate & format - list_for_each(list, &card->devices) { - struct snd_device *dev; - struct snd_pcm *pcm; - int s; - dev = snd_device(list); - if (dev->type != SNDRV_DEV_PCM) - continue; - pcm = dev->device_data; - for (s = 0; s < 2; ++s) { - struct snd_pcm_substream *test_substream; - test_substream = pcm->streams[s].substream; - if (test_substream && test_substream != substream && - test_substream->runtime && - ((test_substream->runtime->format && - test_substream->runtime->format != format) || - (test_substream->runtime->rate && - test_substream->runtime->rate != rate))) - return -EINVAL; - } - } - if (0 > (err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)))) { - snd_printk(KERN_ERR "snd_pcm_lib_malloc_pages(%p, %i) returned %i\n", - substream, params_buffer_bytes(hw_params), err); - return err; - } - return 0; -} - -/* - * free the buffer - */ -static int snd_usX2Y_pcm_hw_free(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_usX2Y_substream *subs = runtime->private_data; - mutex_lock(&subs->usX2Y->prepare_mutex); - snd_printdd("snd_usX2Y_hw_free(%p)\n", substream); - - if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) { - struct snd_usX2Y_substream *cap_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]; - atomic_set(&subs->state, state_STOPPED); - usX2Y_urbs_release(subs); - if (!cap_subs->pcm_substream || - !cap_subs->pcm_substream->runtime || - !cap_subs->pcm_substream->runtime->status || - cap_subs->pcm_substream->runtime->status->state < SNDRV_PCM_STATE_PREPARED) { - atomic_set(&cap_subs->state, state_STOPPED); - usX2Y_urbs_release(cap_subs); - } - } else { - struct snd_usX2Y_substream *playback_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]; - if (atomic_read(&playback_subs->state) < state_PREPARED) { - atomic_set(&subs->state, state_STOPPED); - usX2Y_urbs_release(subs); - } - } - mutex_unlock(&subs->usX2Y->prepare_mutex); - return snd_pcm_lib_free_pages(substream); -} -/* - * prepare callback - * - * set format and initialize urbs - */ -static int snd_usX2Y_pcm_prepare(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_usX2Y_substream *subs = runtime->private_data; - struct usX2Ydev *usX2Y = subs->usX2Y; - struct snd_usX2Y_substream *capsubs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]; - int err = 0; - snd_printdd("snd_usX2Y_pcm_prepare(%p)\n", substream); - - mutex_lock(&usX2Y->prepare_mutex); - usX2Y_subs_prepare(subs); -// Start hardware streams -// SyncStream first.... - if (atomic_read(&capsubs->state) < state_PREPARED) { - if (usX2Y->format != runtime->format) - if ((err = usX2Y_format_set(usX2Y, runtime->format)) < 0) - goto up_prepare_mutex; - if (usX2Y->rate != runtime->rate) - if ((err = usX2Y_rate_set(usX2Y, runtime->rate)) < 0) - goto up_prepare_mutex; - snd_printdd("starting capture pipe for %s\n", subs == capsubs ? "self" : "playpipe"); - if (0 > (err = usX2Y_urbs_start(capsubs))) - goto up_prepare_mutex; - } - - if (subs != capsubs && atomic_read(&subs->state) < state_PREPARED) - err = usX2Y_urbs_start(subs); - - up_prepare_mutex: - mutex_unlock(&usX2Y->prepare_mutex); - return err; -} - -static struct snd_pcm_hardware snd_usX2Y_2c = -{ - .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_BLOCK_TRANSFER | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_BATCH), - .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE, - .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, - .rate_min = 44100, - .rate_max = 48000, - .channels_min = 2, - .channels_max = 2, - .buffer_bytes_max = (2*128*1024), - .period_bytes_min = 64, - .period_bytes_max = (128*1024), - .periods_min = 2, - .periods_max = 1024, - .fifo_size = 0 -}; - - - -static int snd_usX2Y_pcm_open(struct snd_pcm_substream *substream) -{ - struct snd_usX2Y_substream *subs = ((struct snd_usX2Y_substream **) - snd_pcm_substream_chip(substream))[substream->stream]; - struct snd_pcm_runtime *runtime = substream->runtime; - - if (subs->usX2Y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS) - return -EBUSY; - - runtime->hw = snd_usX2Y_2c; - runtime->private_data = subs; - subs->pcm_substream = substream; - snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 1000, 200000); - return 0; -} - - - -static int snd_usX2Y_pcm_close(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_usX2Y_substream *subs = runtime->private_data; - - subs->pcm_substream = NULL; - - return 0; -} - - -static struct snd_pcm_ops snd_usX2Y_pcm_ops = -{ - .open = snd_usX2Y_pcm_open, - .close = snd_usX2Y_pcm_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_usX2Y_pcm_hw_params, - .hw_free = snd_usX2Y_pcm_hw_free, - .prepare = snd_usX2Y_pcm_prepare, - .trigger = snd_usX2Y_pcm_trigger, - .pointer = snd_usX2Y_pcm_pointer, -}; - - -/* - * free a usb stream instance - */ -static void usX2Y_audio_stream_free(struct snd_usX2Y_substream **usX2Y_substream) -{ - kfree(usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]); - usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK] = NULL; - - kfree(usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]); - usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE] = NULL; -} - -static void snd_usX2Y_pcm_private_free(struct snd_pcm *pcm) -{ - struct snd_usX2Y_substream **usX2Y_stream = pcm->private_data; - if (usX2Y_stream) - usX2Y_audio_stream_free(usX2Y_stream); -} - -static int usX2Y_audio_stream_new(struct snd_card *card, int playback_endpoint, int capture_endpoint) -{ - struct snd_pcm *pcm; - int err, i; - struct snd_usX2Y_substream **usX2Y_substream = - usX2Y(card)->subs + 2 * usX2Y(card)->pcm_devs; - - for (i = playback_endpoint ? SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE; - i <= SNDRV_PCM_STREAM_CAPTURE; ++i) { - usX2Y_substream[i] = kzalloc(sizeof(struct snd_usX2Y_substream), GFP_KERNEL); - if (NULL == usX2Y_substream[i]) { - snd_printk(KERN_ERR "cannot malloc\n"); - return -ENOMEM; - } - usX2Y_substream[i]->usX2Y = usX2Y(card); - } - - if (playback_endpoint) - usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]->endpoint = playback_endpoint; - usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]->endpoint = capture_endpoint; - - err = snd_pcm_new(card, NAME_ALLCAPS" Audio", usX2Y(card)->pcm_devs, - playback_endpoint ? 1 : 0, 1, - &pcm); - if (err < 0) { - usX2Y_audio_stream_free(usX2Y_substream); - return err; - } - - if (playback_endpoint) - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_usX2Y_pcm_ops); - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usX2Y_pcm_ops); - - pcm->private_data = usX2Y_substream; - pcm->private_free = snd_usX2Y_pcm_private_free; - pcm->info_flags = 0; - - sprintf(pcm->name, NAME_ALLCAPS" Audio #%d", usX2Y(card)->pcm_devs); - - if ((playback_endpoint && - 0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream, - SNDRV_DMA_TYPE_CONTINUOUS, - snd_dma_continuous_data(GFP_KERNEL), - 64*1024, 128*1024))) || - 0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream, - SNDRV_DMA_TYPE_CONTINUOUS, - snd_dma_continuous_data(GFP_KERNEL), - 64*1024, 128*1024))) { - snd_usX2Y_pcm_private_free(pcm); - return err; - } - usX2Y(card)->pcm_devs++; - - return 0; -} - -/* - * create a chip instance and set its names. - */ -int usX2Y_audio_create(struct snd_card *card) -{ - int err = 0; - - INIT_LIST_HEAD(&usX2Y(card)->pcm_list); - - if (0 > (err = usX2Y_audio_stream_new(card, 0xA, 0x8))) - return err; - if (le16_to_cpu(usX2Y(card)->dev->descriptor.idProduct) == USB_ID_US428) - if (0 > (err = usX2Y_audio_stream_new(card, 0, 0xA))) - return err; - if (le16_to_cpu(usX2Y(card)->dev->descriptor.idProduct) != USB_ID_US122) - err = usX2Y_rate_set(usX2Y(card), 44100); // Lets us428 recognize output-volume settings, disturbs us122. - return err; -} |