| /* |
| * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de> |
| * |
| * 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #include <sound/core.h> |
| #include <sound/hwdep.h> |
| #include <sound/pcm.h> |
| #include <sound/initval.h> |
| #define MODNAME "US122L" |
| #include "usb_stream.c" |
| #include "../usbaudio.h" |
| #include "us122l.h" |
| |
| MODULE_AUTHOR("Karsten Wiese <fzu@wemgehoertderstaat.de>"); |
| MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.5"); |
| MODULE_LICENSE("GPL"); |
| |
| static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ |
| static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */ |
| /* Enable this card */ |
| static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; |
| |
| module_param_array(index, int, NULL, 0444); |
| MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS"."); |
| module_param_array(id, charp, NULL, 0444); |
| MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS"."); |
| module_param_array(enable, bool, NULL, 0444); |
| MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS"."); |
| |
| static int snd_us122l_card_used[SNDRV_CARDS]; |
| |
| |
| static int us122l_create_usbmidi(struct snd_card *card) |
| { |
| static struct snd_usb_midi_endpoint_info quirk_data = { |
| .out_ep = 4, |
| .in_ep = 3, |
| .out_cables = 0x001, |
| .in_cables = 0x001 |
| }; |
| static struct snd_usb_audio_quirk quirk = { |
| .vendor_name = "US122L", |
| .product_name = NAME_ALLCAPS, |
| .ifnum = 1, |
| .type = QUIRK_MIDI_US122L, |
| .data = &quirk_data |
| }; |
| struct usb_device *dev = US122L(card)->chip.dev; |
| struct usb_interface *iface = usb_ifnum_to_if(dev, 1); |
| |
| return snd_usb_create_midi_interface(&US122L(card)->chip, |
| iface, &quirk); |
| } |
| |
| /* |
| * Wrapper for usb_control_msg(). |
| * Allocates a temp buffer to prevent dmaing from/to the stack. |
| */ |
| static int us122l_ctl_msg(struct usb_device *dev, unsigned int pipe, |
| __u8 request, __u8 requesttype, |
| __u16 value, __u16 index, void *data, |
| __u16 size, int timeout) |
| { |
| int err; |
| void *buf = NULL; |
| |
| if (size > 0) { |
| buf = kmemdup(data, size, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| } |
| err = usb_control_msg(dev, pipe, request, requesttype, |
| value, index, buf, size, timeout); |
| if (size > 0) { |
| memcpy(data, buf, size); |
| kfree(buf); |
| } |
| return err; |
| } |
| |
| static void pt_info_set(struct usb_device *dev, u8 v) |
| { |
| int ret; |
| |
| ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 'I', |
| USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
| v, 0, NULL, 0, 1000); |
| snd_printdd(KERN_DEBUG "%i\n", ret); |
| } |
| |
| static void usb_stream_hwdep_vm_open(struct vm_area_struct *area) |
| { |
| struct us122l *us122l = area->vm_private_data; |
| atomic_inc(&us122l->mmap_count); |
| snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count)); |
| } |
| |
| static int usb_stream_hwdep_vm_fault(struct vm_area_struct *area, |
| struct vm_fault *vmf) |
| { |
| unsigned long offset; |
| struct page *page; |
| void *vaddr; |
| struct us122l *us122l = area->vm_private_data; |
| struct usb_stream *s; |
| |
| mutex_lock(&us122l->mutex); |
| s = us122l->sk.s; |
| if (!s) |
| goto unlock; |
| |
| offset = vmf->pgoff << PAGE_SHIFT; |
| if (offset < PAGE_ALIGN(s->read_size)) |
| vaddr = (char *)s + offset; |
| else { |
| offset -= PAGE_ALIGN(s->read_size); |
| if (offset >= PAGE_ALIGN(s->write_size)) |
| goto unlock; |
| |
| vaddr = us122l->sk.write_page + offset; |
| } |
| page = virt_to_page(vaddr); |
| |
| get_page(page); |
| mutex_unlock(&us122l->mutex); |
| |
| vmf->page = page; |
| |
| return 0; |
| unlock: |
| mutex_unlock(&us122l->mutex); |
| return VM_FAULT_SIGBUS; |
| } |
| |
| static void usb_stream_hwdep_vm_close(struct vm_area_struct *area) |
| { |
| struct us122l *us122l = area->vm_private_data; |
| atomic_dec(&us122l->mmap_count); |
| snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count)); |
| } |
| |
| static struct vm_operations_struct usb_stream_hwdep_vm_ops = { |
| .open = usb_stream_hwdep_vm_open, |
| .fault = usb_stream_hwdep_vm_fault, |
| .close = usb_stream_hwdep_vm_close, |
| }; |
| |
| |
| static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file) |
| { |
| struct us122l *us122l = hw->private_data; |
| struct usb_interface *iface; |
| snd_printdd(KERN_DEBUG "%p %p\n", hw, file); |
| if (hw->used >= 2) |
| return -EBUSY; |
| |
| if (!us122l->first) |
| us122l->first = file; |
| iface = usb_ifnum_to_if(us122l->chip.dev, 1); |
| usb_autopm_get_interface(iface); |
| return 0; |
| } |
| |
| static int usb_stream_hwdep_release(struct snd_hwdep *hw, struct file *file) |
| { |
| struct us122l *us122l = hw->private_data; |
| struct usb_interface *iface = usb_ifnum_to_if(us122l->chip.dev, 1); |
| snd_printdd(KERN_DEBUG "%p %p\n", hw, file); |
| usb_autopm_put_interface(iface); |
| if (us122l->first == file) |
| us122l->first = NULL; |
| mutex_lock(&us122l->mutex); |
| if (us122l->master == file) |
| us122l->master = us122l->slave; |
| |
| us122l->slave = NULL; |
| mutex_unlock(&us122l->mutex); |
| return 0; |
| } |
| |
| static int usb_stream_hwdep_mmap(struct snd_hwdep *hw, |
| struct file *filp, struct vm_area_struct *area) |
| { |
| unsigned long size = area->vm_end - area->vm_start; |
| struct us122l *us122l = hw->private_data; |
| unsigned long offset; |
| struct usb_stream *s; |
| int err = 0; |
| bool read; |
| |
| offset = area->vm_pgoff << PAGE_SHIFT; |
| mutex_lock(&us122l->mutex); |
| s = us122l->sk.s; |
| read = offset < s->read_size; |
| if (read && area->vm_flags & VM_WRITE) { |
| err = -EPERM; |
| goto out; |
| } |
| snd_printdd(KERN_DEBUG "%lu %u\n", size, |
| read ? s->read_size : s->write_size); |
| /* if userspace tries to mmap beyond end of our buffer, fail */ |
| if (size > PAGE_ALIGN(read ? s->read_size : s->write_size)) { |
| snd_printk(KERN_WARNING "%lu > %u\n", size, |
| read ? s->read_size : s->write_size); |
| err = -EINVAL; |
| goto out; |
| } |
| |
| area->vm_ops = &usb_stream_hwdep_vm_ops; |
| area->vm_flags |= VM_RESERVED; |
| area->vm_private_data = us122l; |
| atomic_inc(&us122l->mmap_count); |
| out: |
| mutex_unlock(&us122l->mutex); |
| return err; |
| } |
| |
| static unsigned int usb_stream_hwdep_poll(struct snd_hwdep *hw, |
| struct file *file, poll_table *wait) |
| { |
| struct us122l *us122l = hw->private_data; |
| struct usb_stream *s = us122l->sk.s; |
| unsigned *polled; |
| unsigned int mask; |
| |
| poll_wait(file, &us122l->sk.sleep, wait); |
| |
| switch (s->state) { |
| case usb_stream_ready: |
| if (us122l->first == file) |
| polled = &s->periods_polled; |
| else |
| polled = &us122l->second_periods_polled; |
| if (*polled != s->periods_done) { |
| *polled = s->periods_done; |
| mask = POLLIN | POLLOUT | POLLWRNORM; |
| break; |
| } |
| /* Fall through */ |
| mask = 0; |
| break; |
| default: |
| mask = POLLIN | POLLOUT | POLLWRNORM | POLLERR; |
| break; |
| } |
| return mask; |
| } |
| |
| static void us122l_stop(struct us122l *us122l) |
| { |
| struct list_head *p; |
| list_for_each(p, &us122l->chip.midi_list) |
| snd_usbmidi_input_stop(p); |
| |
| usb_stream_stop(&us122l->sk); |
| usb_stream_free(&us122l->sk); |
| } |
| |
| static int us122l_set_sample_rate(struct usb_device *dev, int rate) |
| { |
| unsigned int ep = 0x81; |
| unsigned char data[3]; |
| int err; |
| |
| data[0] = rate; |
| data[1] = rate >> 8; |
| data[2] = rate >> 16; |
| err = us122l_ctl_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, |
| USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, |
| SAMPLING_FREQ_CONTROL << 8, ep, data, 3, 1000); |
| if (err < 0) |
| snd_printk(KERN_ERR "%d: cannot set freq %d to ep 0x%x\n", |
| dev->devnum, rate, ep); |
| return err; |
| } |
| |
| static bool us122l_start(struct us122l *us122l, |
| unsigned rate, unsigned period_frames) |
| { |
| struct list_head *p; |
| int err; |
| unsigned use_packsize = 0; |
| bool success = false; |
| |
| if (us122l->chip.dev->speed == USB_SPEED_HIGH) { |
| /* The us-122l's descriptor defaults to iso max_packsize 78, |
| which isn't needed for samplerates <= 48000. |
| Lets save some memory: |
| */ |
| switch (rate) { |
| case 44100: |
| use_packsize = 36; |
| break; |
| case 48000: |
| use_packsize = 42; |
| break; |
| case 88200: |
| use_packsize = 72; |
| break; |
| } |
| } |
| if (!usb_stream_new(&us122l->sk, us122l->chip.dev, 1, 2, |
| rate, use_packsize, period_frames, 6)) |
| goto out; |
| |
| err = us122l_set_sample_rate(us122l->chip.dev, rate); |
| if (err < 0) { |
| us122l_stop(us122l); |
| snd_printk(KERN_ERR "us122l_set_sample_rate error \n"); |
| goto out; |
| } |
| err = usb_stream_start(&us122l->sk); |
| if (err < 0) { |
| us122l_stop(us122l); |
| snd_printk(KERN_ERR "us122l_start error %i \n", err); |
| goto out; |
| } |
| list_for_each(p, &us122l->chip.midi_list) |
| snd_usbmidi_input_start(p); |
| success = true; |
| out: |
| return success; |
| } |
| |
| static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, |
| unsigned cmd, unsigned long arg) |
| { |
| struct usb_stream_config *cfg; |
| struct us122l *us122l = hw->private_data; |
| unsigned min_period_frames; |
| int err = 0; |
| bool high_speed; |
| |
| if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS) |
| return -ENOTTY; |
| |
| cfg = kmalloc(sizeof(*cfg), GFP_KERNEL); |
| if (!cfg) |
| return -ENOMEM; |
| |
| if (copy_from_user(cfg, (void *)arg, sizeof(*cfg))) { |
| err = -EFAULT; |
| goto free; |
| } |
| if (cfg->version != USB_STREAM_INTERFACE_VERSION) { |
| err = -ENXIO; |
| goto free; |
| } |
| high_speed = us122l->chip.dev->speed == USB_SPEED_HIGH; |
| if ((cfg->sample_rate != 44100 && cfg->sample_rate != 48000 && |
| (!high_speed || |
| (cfg->sample_rate != 88200 && cfg->sample_rate != 96000))) || |
| cfg->frame_size != 6 || |
| cfg->period_frames > 0x3000) { |
| err = -EINVAL; |
| goto free; |
| } |
| switch (cfg->sample_rate) { |
| case 44100: |
| min_period_frames = 48; |
| break; |
| case 48000: |
| min_period_frames = 52; |
| break; |
| default: |
| min_period_frames = 104; |
| break; |
| } |
| if (!high_speed) |
| min_period_frames <<= 1; |
| if (cfg->period_frames < min_period_frames) { |
| err = -EINVAL; |
| goto free; |
| } |
| |
| snd_power_wait(hw->card, SNDRV_CTL_POWER_D0); |
| |
| mutex_lock(&us122l->mutex); |
| if (!us122l->master) |
| us122l->master = file; |
| else if (us122l->master != file) { |
| if (memcmp(cfg, &us122l->sk.s->cfg, sizeof(*cfg))) { |
| err = -EIO; |
| goto unlock; |
| } |
| us122l->slave = file; |
| } |
| if (!us122l->sk.s || |
| memcmp(cfg, &us122l->sk.s->cfg, sizeof(*cfg)) || |
| us122l->sk.s->state == usb_stream_xrun) { |
| us122l_stop(us122l); |
| if (!us122l_start(us122l, cfg->sample_rate, cfg->period_frames)) |
| err = -EIO; |
| else |
| err = 1; |
| } |
| unlock: |
| mutex_unlock(&us122l->mutex); |
| free: |
| kfree(cfg); |
| return err; |
| } |
| |
| #define SND_USB_STREAM_ID "USB STREAM" |
| static int usb_stream_hwdep_new(struct snd_card *card) |
| { |
| int err; |
| struct snd_hwdep *hw; |
| struct usb_device *dev = US122L(card)->chip.dev; |
| |
| err = snd_hwdep_new(card, SND_USB_STREAM_ID, 0, &hw); |
| if (err < 0) |
| return err; |
| |
| hw->iface = SNDRV_HWDEP_IFACE_USB_STREAM; |
| hw->private_data = US122L(card); |
| hw->ops.open = usb_stream_hwdep_open; |
| hw->ops.release = usb_stream_hwdep_release; |
| hw->ops.ioctl = usb_stream_hwdep_ioctl; |
| hw->ops.ioctl_compat = usb_stream_hwdep_ioctl; |
| hw->ops.mmap = usb_stream_hwdep_mmap; |
| hw->ops.poll = usb_stream_hwdep_poll; |
| |
| sprintf(hw->name, "/proc/bus/usb/%03d/%03d/hwdeppcm", |
| dev->bus->busnum, dev->devnum); |
| return 0; |
| } |
| |
| |
| static bool us122l_create_card(struct snd_card *card) |
| { |
| int err; |
| struct us122l *us122l = US122L(card); |
| |
| err = usb_set_interface(us122l->chip.dev, 1, 1); |
| if (err) { |
| snd_printk(KERN_ERR "usb_set_interface error \n"); |
| return false; |
| } |
| |
| pt_info_set(us122l->chip.dev, 0x11); |
| pt_info_set(us122l->chip.dev, 0x10); |
| |
| if (!us122l_start(us122l, 44100, 256)) |
| return false; |
| |
| err = us122l_create_usbmidi(card); |
| if (err < 0) { |
| snd_printk(KERN_ERR "us122l_create_usbmidi error %i \n", err); |
| us122l_stop(us122l); |
| return false; |
| } |
| err = usb_stream_hwdep_new(card); |
| if (err < 0) { |
| /* release the midi resources */ |
| struct list_head *p; |
| list_for_each(p, &us122l->chip.midi_list) |
| snd_usbmidi_disconnect(p); |
| |
| us122l_stop(us122l); |
| return false; |
| } |
| return true; |
| } |
| |
| static struct snd_card *usx2y_create_card(struct usb_device *device) |
| { |
| int dev; |
| struct snd_card *card; |
| int err; |
| |
| for (dev = 0; dev < SNDRV_CARDS; ++dev) |
| if (enable[dev] && !snd_us122l_card_used[dev]) |
| break; |
| if (dev >= SNDRV_CARDS) |
| return NULL; |
| err = snd_card_create(index[dev], id[dev], THIS_MODULE, |
| sizeof(struct us122l), &card); |
| if (err < 0) |
| return NULL; |
| snd_us122l_card_used[US122L(card)->chip.index = dev] = 1; |
| |
| US122L(card)->chip.dev = device; |
| US122L(card)->chip.card = card; |
| mutex_init(&US122L(card)->mutex); |
| init_waitqueue_head(&US122L(card)->sk.sleep); |
| INIT_LIST_HEAD(&US122L(card)->chip.midi_list); |
| strcpy(card->driver, "USB "NAME_ALLCAPS""); |
| sprintf(card->shortname, "TASCAM "NAME_ALLCAPS""); |
| sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)", |
| card->shortname, |
| le16_to_cpu(device->descriptor.idVendor), |
| le16_to_cpu(device->descriptor.idProduct), |
| 0, |
| US122L(card)->chip.dev->bus->busnum, |
| US122L(card)->chip.dev->devnum |
| ); |
| snd_card_set_dev(card, &device->dev); |
| return card; |
| } |
| |
| static void *us122l_usb_probe(struct usb_interface *intf, |
| const struct usb_device_id *device_id) |
| { |
| struct usb_device *device = interface_to_usbdev(intf); |
| struct snd_card *card = usx2y_create_card(device); |
| |
| if (!card) |
| return NULL; |
| |
| if (!us122l_create_card(card) || |
| snd_card_register(card) < 0) { |
| snd_card_free(card); |
| return NULL; |
| } |
| |
| usb_get_dev(device); |
| return card; |
| } |
| |
| static int snd_us122l_probe(struct usb_interface *intf, |
| const struct usb_device_id *id) |
| { |
| struct snd_card *card; |
| snd_printdd(KERN_DEBUG"%p:%i\n", |
| intf, intf->cur_altsetting->desc.bInterfaceNumber); |
| if (intf->cur_altsetting->desc.bInterfaceNumber != 1) |
| return 0; |
| |
| card = us122l_usb_probe(usb_get_intf(intf), id); |
| |
| if (card) { |
| usb_set_intfdata(intf, card); |
| return 0; |
| } |
| |
| usb_put_intf(intf); |
| return -EIO; |
| } |
| |
| static void snd_us122l_disconnect(struct usb_interface *intf) |
| { |
| struct snd_card *card; |
| struct us122l *us122l; |
| struct list_head *p; |
| |
| card = usb_get_intfdata(intf); |
| if (!card) |
| return; |
| |
| snd_card_disconnect(card); |
| |
| us122l = US122L(card); |
| mutex_lock(&us122l->mutex); |
| us122l_stop(us122l); |
| mutex_unlock(&us122l->mutex); |
| us122l->chip.shutdown = 1; |
| |
| /* release the midi resources */ |
| list_for_each(p, &us122l->chip.midi_list) { |
| snd_usbmidi_disconnect(p); |
| } |
| |
| usb_put_intf(intf); |
| usb_put_dev(US122L(card)->chip.dev); |
| |
| while (atomic_read(&us122l->mmap_count)) |
| msleep(500); |
| |
| snd_card_free(card); |
| } |
| |
| static int snd_us122l_suspend(struct usb_interface *intf, pm_message_t message) |
| { |
| struct snd_card *card; |
| struct us122l *us122l; |
| struct list_head *p; |
| |
| card = usb_get_intfdata(intf); |
| if (!card) |
| return 0; |
| snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); |
| |
| us122l = US122L(card); |
| if (!us122l) |
| return 0; |
| |
| list_for_each(p, &us122l->chip.midi_list) |
| snd_usbmidi_input_stop(p); |
| |
| mutex_lock(&us122l->mutex); |
| usb_stream_stop(&us122l->sk); |
| mutex_unlock(&us122l->mutex); |
| |
| return 0; |
| } |
| |
| static int snd_us122l_resume(struct usb_interface *intf) |
| { |
| struct snd_card *card; |
| struct us122l *us122l; |
| struct list_head *p; |
| int err; |
| |
| card = usb_get_intfdata(intf); |
| if (!card) |
| return 0; |
| |
| us122l = US122L(card); |
| if (!us122l) |
| return 0; |
| |
| mutex_lock(&us122l->mutex); |
| /* needed, doesn't restart without: */ |
| err = usb_set_interface(us122l->chip.dev, 1, 1); |
| if (err) { |
| snd_printk(KERN_ERR "usb_set_interface error \n"); |
| goto unlock; |
| } |
| |
| pt_info_set(us122l->chip.dev, 0x11); |
| pt_info_set(us122l->chip.dev, 0x10); |
| |
| err = us122l_set_sample_rate(us122l->chip.dev, |
| us122l->sk.s->cfg.sample_rate); |
| if (err < 0) { |
| snd_printk(KERN_ERR "us122l_set_sample_rate error \n"); |
| goto unlock; |
| } |
| err = usb_stream_start(&us122l->sk); |
| if (err) |
| goto unlock; |
| |
| list_for_each(p, &us122l->chip.midi_list) |
| snd_usbmidi_input_start(p); |
| unlock: |
| mutex_unlock(&us122l->mutex); |
| snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
| return err; |
| } |
| |
| static struct usb_device_id snd_us122l_usb_id_table[] = { |
| { |
| .match_flags = USB_DEVICE_ID_MATCH_DEVICE, |
| .idVendor = 0x0644, |
| .idProduct = USB_ID_US122L |
| }, |
| /* { */ /* US-144 maybe works when @USB1.1. Untested. */ |
| /* .match_flags = USB_DEVICE_ID_MATCH_DEVICE, */ |
| /* .idVendor = 0x0644, */ |
| /* .idProduct = USB_ID_US144 */ |
| /* }, */ |
| { /* terminator */ } |
| }; |
| |
| MODULE_DEVICE_TABLE(usb, snd_us122l_usb_id_table); |
| static struct usb_driver snd_us122l_usb_driver = { |
| .name = "snd-usb-us122l", |
| .probe = snd_us122l_probe, |
| .disconnect = snd_us122l_disconnect, |
| .suspend = snd_us122l_suspend, |
| .resume = snd_us122l_resume, |
| .reset_resume = snd_us122l_resume, |
| .id_table = snd_us122l_usb_id_table, |
| .supports_autosuspend = 1 |
| }; |
| |
| |
| static int __init snd_us122l_module_init(void) |
| { |
| return usb_register(&snd_us122l_usb_driver); |
| } |
| |
| static void __exit snd_us122l_module_exit(void) |
| { |
| usb_deregister(&snd_us122l_usb_driver); |
| } |
| |
| module_init(snd_us122l_module_init) |
| module_exit(snd_us122l_module_exit) |