| /* |
| * Driver for Tascam US-X2Y USB soundcards |
| * |
| * FPGA Loader + ALSA Startup |
| * |
| * Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #include <sound/driver.h> |
| #include <linux/interrupt.h> |
| #include <linux/usb.h> |
| #include <sound/core.h> |
| #include <sound/memalloc.h> |
| #include <sound/pcm.h> |
| #include <sound/hwdep.h> |
| #include "usx2y.h" |
| #include "usbusx2y.h" |
| #include "usX2Yhwdep.h" |
| |
| int usX2Y_hwdep_pcm_new(snd_card_t* card); |
| |
| |
| static struct page * snd_us428ctls_vm_nopage(struct vm_area_struct *area, unsigned long address, int *type) |
| { |
| unsigned long offset; |
| struct page * page; |
| void *vaddr; |
| |
| snd_printdd("ENTER, start %lXh, ofs %lXh, pgoff %ld, addr %lXh\n", |
| area->vm_start, |
| address - area->vm_start, |
| (address - area->vm_start) >> PAGE_SHIFT, |
| address); |
| |
| offset = area->vm_pgoff << PAGE_SHIFT; |
| offset += address - area->vm_start; |
| snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_OOM); |
| vaddr = (char*)((usX2Ydev_t*)area->vm_private_data)->us428ctls_sharedmem + offset; |
| page = virt_to_page(vaddr); |
| get_page(page); |
| snd_printdd( "vaddr=%p made us428ctls_vm_nopage() return %p; offset=%lX\n", vaddr, page, offset); |
| |
| if (type) |
| *type = VM_FAULT_MINOR; |
| |
| return page; |
| } |
| |
| static struct vm_operations_struct us428ctls_vm_ops = { |
| .nopage = snd_us428ctls_vm_nopage, |
| }; |
| |
| static int snd_us428ctls_mmap(snd_hwdep_t * hw, struct file *filp, struct vm_area_struct *area) |
| { |
| unsigned long size = (unsigned long)(area->vm_end - area->vm_start); |
| usX2Ydev_t *us428 = hw->private_data; |
| |
| // FIXME this hwdep interface is used twice: fpga download and mmap for controlling Lights etc. Maybe better using 2 hwdep devs? |
| // so as long as the device isn't fully initialised yet we return -EBUSY here. |
| if (!(us428->chip_status & USX2Y_STAT_CHIP_INIT)) |
| return -EBUSY; |
| |
| /* if userspace tries to mmap beyond end of our buffer, fail */ |
| if (size > PAGE_ALIGN(sizeof(us428ctls_sharedmem_t))) { |
| snd_printd( "%lu > %lu\n", size, (unsigned long)sizeof(us428ctls_sharedmem_t)); |
| return -EINVAL; |
| } |
| |
| if (!us428->us428ctls_sharedmem) { |
| init_waitqueue_head(&us428->us428ctls_wait_queue_head); |
| if(!(us428->us428ctls_sharedmem = snd_malloc_pages(sizeof(us428ctls_sharedmem_t), GFP_KERNEL))) |
| return -ENOMEM; |
| memset(us428->us428ctls_sharedmem, -1, sizeof(us428ctls_sharedmem_t)); |
| us428->us428ctls_sharedmem->CtlSnapShotLast = -2; |
| } |
| area->vm_ops = &us428ctls_vm_ops; |
| area->vm_flags |= VM_RESERVED; |
| area->vm_private_data = hw->private_data; |
| return 0; |
| } |
| |
| static unsigned int snd_us428ctls_poll(snd_hwdep_t *hw, struct file *file, poll_table *wait) |
| { |
| unsigned int mask = 0; |
| usX2Ydev_t *us428 = hw->private_data; |
| us428ctls_sharedmem_t *shm = us428->us428ctls_sharedmem; |
| if (us428->chip_status & USX2Y_STAT_CHIP_HUP) |
| return POLLHUP; |
| |
| poll_wait(file, &us428->us428ctls_wait_queue_head, wait); |
| |
| if (shm != NULL && shm->CtlSnapShotLast != shm->CtlSnapShotRed) |
| mask |= POLLIN; |
| |
| return mask; |
| } |
| |
| |
| static int snd_usX2Y_hwdep_open(snd_hwdep_t *hw, struct file *file) |
| { |
| return 0; |
| } |
| |
| static int snd_usX2Y_hwdep_release(snd_hwdep_t *hw, struct file *file) |
| { |
| return 0; |
| } |
| |
| static int snd_usX2Y_hwdep_dsp_status(snd_hwdep_t *hw, snd_hwdep_dsp_status_t *info) |
| { |
| static char *type_ids[USX2Y_TYPE_NUMS] = { |
| [USX2Y_TYPE_122] = "us122", |
| [USX2Y_TYPE_224] = "us224", |
| [USX2Y_TYPE_428] = "us428", |
| }; |
| usX2Ydev_t *us428 = hw->private_data; |
| int id = -1; |
| |
| switch (le16_to_cpu(us428->chip.dev->descriptor.idProduct)) { |
| case USB_ID_US122: |
| id = USX2Y_TYPE_122; |
| break; |
| case USB_ID_US224: |
| id = USX2Y_TYPE_224; |
| break; |
| case USB_ID_US428: |
| id = USX2Y_TYPE_428; |
| break; |
| } |
| if (0 > id) |
| return -ENODEV; |
| strcpy(info->id, type_ids[id]); |
| info->num_dsps = 2; // 0: Prepad Data, 1: FPGA Code |
| if (us428->chip_status & USX2Y_STAT_CHIP_INIT) |
| info->chip_ready = 1; |
| info->version = USX2Y_DRIVER_VERSION; |
| return 0; |
| } |
| |
| |
| static int usX2Y_create_usbmidi(snd_card_t* card ) |
| { |
| static snd_usb_midi_endpoint_info_t quirk_data_1 = { |
| .out_ep =0x06, |
| .in_ep = 0x06, |
| .out_cables = 0x001, |
| .in_cables = 0x001 |
| }; |
| static snd_usb_audio_quirk_t quirk_1 = { |
| .vendor_name = "TASCAM", |
| .product_name = NAME_ALLCAPS, |
| .ifnum = 0, |
| .type = QUIRK_MIDI_FIXED_ENDPOINT, |
| .data = &quirk_data_1 |
| }; |
| static snd_usb_midi_endpoint_info_t quirk_data_2 = { |
| .out_ep =0x06, |
| .in_ep = 0x06, |
| .out_cables = 0x003, |
| .in_cables = 0x003 |
| }; |
| static snd_usb_audio_quirk_t quirk_2 = { |
| .vendor_name = "TASCAM", |
| .product_name = "US428", |
| .ifnum = 0, |
| .type = QUIRK_MIDI_FIXED_ENDPOINT, |
| .data = &quirk_data_2 |
| }; |
| struct usb_device *dev = usX2Y(card)->chip.dev; |
| struct usb_interface *iface = usb_ifnum_to_if(dev, 0); |
| snd_usb_audio_quirk_t *quirk = le16_to_cpu(dev->descriptor.idProduct) == USB_ID_US428 ? &quirk_2 : &quirk_1; |
| |
| snd_printdd("usX2Y_create_usbmidi \n"); |
| return snd_usb_create_midi_interface(&usX2Y(card)->chip, iface, quirk); |
| } |
| |
| static int usX2Y_create_alsa_devices(snd_card_t* card) |
| { |
| int err; |
| |
| do { |
| if ((err = usX2Y_create_usbmidi(card)) < 0) { |
| snd_printk(KERN_ERR "usX2Y_create_alsa_devices: usX2Y_create_usbmidi error %i \n", err); |
| break; |
| } |
| if ((err = usX2Y_audio_create(card)) < 0) |
| break; |
| if ((err = usX2Y_hwdep_pcm_new(card)) < 0) |
| break; |
| if ((err = snd_card_register(card)) < 0) |
| break; |
| } while (0); |
| |
| return err; |
| } |
| |
| static int snd_usX2Y_hwdep_dsp_load(snd_hwdep_t *hw, snd_hwdep_dsp_image_t *dsp) |
| { |
| usX2Ydev_t *priv = hw->private_data; |
| int lret, err = -EINVAL; |
| snd_printdd( "dsp_load %s\n", dsp->name); |
| |
| if (access_ok(VERIFY_READ, dsp->image, dsp->length)) { |
| struct usb_device* dev = priv->chip.dev; |
| char *buf = kmalloc(dsp->length, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| if (copy_from_user(buf, dsp->image, dsp->length)) { |
| kfree(buf); |
| return -EFAULT; |
| } |
| err = usb_set_interface(dev, 0, 1); |
| if (err) |
| snd_printk(KERN_ERR "usb_set_interface error \n"); |
| else |
| err = usb_bulk_msg(dev, usb_sndbulkpipe(dev, 2), buf, dsp->length, &lret, 6000); |
| kfree(buf); |
| } |
| if (err) |
| return err; |
| if (dsp->index == 1) { |
| msleep(250); // give the device some time |
| err = usX2Y_AsyncSeq04_init(priv); |
| if (err) { |
| snd_printk(KERN_ERR "usX2Y_AsyncSeq04_init error \n"); |
| return err; |
| } |
| err = usX2Y_In04_init(priv); |
| if (err) { |
| snd_printk(KERN_ERR "usX2Y_In04_init error \n"); |
| return err; |
| } |
| err = usX2Y_create_alsa_devices(hw->card); |
| if (err) { |
| snd_printk(KERN_ERR "usX2Y_create_alsa_devices error %i \n", err); |
| snd_card_free(hw->card); |
| return err; |
| } |
| priv->chip_status |= USX2Y_STAT_CHIP_INIT; |
| snd_printdd("%s: alsa all started\n", hw->name); |
| } |
| return err; |
| } |
| |
| |
| int usX2Y_hwdep_new(snd_card_t* card, struct usb_device* device) |
| { |
| int err; |
| snd_hwdep_t *hw; |
| |
| if ((err = snd_hwdep_new(card, SND_USX2Y_LOADER_ID, 0, &hw)) < 0) |
| return err; |
| |
| hw->iface = SNDRV_HWDEP_IFACE_USX2Y; |
| hw->private_data = usX2Y(card); |
| hw->ops.open = snd_usX2Y_hwdep_open; |
| hw->ops.release = snd_usX2Y_hwdep_release; |
| hw->ops.dsp_status = snd_usX2Y_hwdep_dsp_status; |
| hw->ops.dsp_load = snd_usX2Y_hwdep_dsp_load; |
| hw->ops.mmap = snd_us428ctls_mmap; |
| hw->ops.poll = snd_us428ctls_poll; |
| hw->exclusive = 1; |
| sprintf(hw->name, "/proc/bus/usb/%03d/%03d", device->bus->busnum, device->devnum); |
| return 0; |
| } |
| |