--- /dev/null
+/*
+ * 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"
+
+
+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 = (usX2Ydev_t*)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 (!(((usX2Ydev_t*)hw->private_data)->chip_status & USX2Y_STAT_CHIP_INIT))
+ return -EBUSY;
+
+ /* if userspace tries to mmap beyond end of our buffer, fail */
+ if (size > ((PAGE_SIZE - 1 + sizeof(us428ctls_sharedmem_t)) / PAGE_SIZE) * PAGE_SIZE) {
+ 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 = (usX2Ydev_t*)hw->private_data;
+ static unsigned LastN;
+
+ if (us428->chip_status & USX2Y_STAT_CHIP_HUP)
+ return POLLHUP;
+
+ poll_wait(file, &us428->us428ctls_wait_queue_head, wait);
+
+ down(&us428->open_mutex);
+ if (us428->us428ctls_sharedmem
+ && us428->us428ctls_sharedmem->CtlSnapShotLast != LastN) {
+ mask |= POLLIN;
+ LastN = us428->us428ctls_sharedmem->CtlSnapShotLast;
+ }
+ up(&us428->open_mutex);
+
+ 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",
+ };
+ int id = -1;
+
+ switch (((usX2Ydev_t*)hw->private_data)->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 (((usX2Ydev_t*)hw->private_data)->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 = 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("usX2Y_create_alsa_devices: usX2Y_create_usbmidi error %i \n", err);
+ break;
+ }
+ if ((err = usX2Y_audio_create(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("usb_set_interface error \n");
+ else
+ err = usb_bulk_msg(dev, usb_sndbulkpipe(dev, 2), buf, dsp->length, &lret, 6*HZ);
+ kfree(buf);
+ }
+ if (err)
+ return err;
+ if (dsp->index == 1) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(HZ/4); // give the device some time
+ err = usX2Y_AsyncSeq04_init(priv);
+ if (err) {
+ snd_printk("usX2Y_AsyncSeq04_init error \n");
+ return err;
+ }
+ err = usX2Y_In04_init(priv);
+ if (err) {
+ snd_printk("usX2Y_In04_init error \n");
+ return err;
+ }
+ err = usX2Y_create_alsa_devices(hw->card);
+ if (err) {
+ snd_printk("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;
+}
+
git://git.onelab.eu / linux-2.6.git / blobdiff