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0010 #include <linux/interrupt.h>
0011 #include <linux/slab.h>
0012 #include <linux/usb.h>
0013 #include <sound/core.h>
0014 #include <sound/memalloc.h>
0015 #include <sound/pcm.h>
0016 #include <sound/hwdep.h>
0017 #include "usx2y.h"
0018 #include "usbusx2y.h"
0019 #include "usX2Yhwdep.h"
0020
0021 static vm_fault_t snd_us428ctls_vm_fault(struct vm_fault *vmf)
0022 {
0023 unsigned long offset;
0024 struct page *page;
0025 void *vaddr;
0026
0027 snd_printdd("ENTER, start %lXh, pgoff %ld\n",
0028 vmf->vma->vm_start,
0029 vmf->pgoff);
0030
0031 offset = vmf->pgoff << PAGE_SHIFT;
0032 vaddr = (char *)((struct usx2ydev *)vmf->vma->vm_private_data)->us428ctls_sharedmem + offset;
0033 page = virt_to_page(vaddr);
0034 get_page(page);
0035 vmf->page = page;
0036
0037 snd_printdd("vaddr=%p made us428ctls_vm_fault() page %p\n",
0038 vaddr, page);
0039
0040 return 0;
0041 }
0042
0043 static const struct vm_operations_struct us428ctls_vm_ops = {
0044 .fault = snd_us428ctls_vm_fault,
0045 };
0046
0047 static int snd_us428ctls_mmap(struct snd_hwdep *hw, struct file *filp, struct vm_area_struct *area)
0048 {
0049 unsigned long size = (unsigned long)(area->vm_end - area->vm_start);
0050 struct usx2ydev *us428 = hw->private_data;
0051
0052
0053
0054 if (!(us428->chip_status & USX2Y_STAT_CHIP_INIT))
0055 return -EBUSY;
0056
0057
0058 if (size > US428_SHAREDMEM_PAGES) {
0059 snd_printd("%lu > %lu\n", size, (unsigned long)US428_SHAREDMEM_PAGES);
0060 return -EINVAL;
0061 }
0062
0063 area->vm_ops = &us428ctls_vm_ops;
0064 area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
0065 area->vm_private_data = hw->private_data;
0066 return 0;
0067 }
0068
0069 static __poll_t snd_us428ctls_poll(struct snd_hwdep *hw, struct file *file, poll_table *wait)
0070 {
0071 __poll_t mask = 0;
0072 struct usx2ydev *us428 = hw->private_data;
0073 struct us428ctls_sharedmem *shm = us428->us428ctls_sharedmem;
0074
0075 if (us428->chip_status & USX2Y_STAT_CHIP_HUP)
0076 return EPOLLHUP;
0077
0078 poll_wait(file, &us428->us428ctls_wait_queue_head, wait);
0079
0080 if (shm && shm->ctl_snapshot_last != shm->ctl_snapshot_red)
0081 mask |= EPOLLIN;
0082
0083 return mask;
0084 }
0085
0086
0087 static int snd_usx2y_hwdep_dsp_status(struct snd_hwdep *hw,
0088 struct snd_hwdep_dsp_status *info)
0089 {
0090 static const char * const type_ids[USX2Y_TYPE_NUMS] = {
0091 [USX2Y_TYPE_122] = "us122",
0092 [USX2Y_TYPE_224] = "us224",
0093 [USX2Y_TYPE_428] = "us428",
0094 };
0095 struct usx2ydev *us428 = hw->private_data;
0096 int id = -1;
0097
0098 switch (le16_to_cpu(us428->dev->descriptor.idProduct)) {
0099 case USB_ID_US122:
0100 id = USX2Y_TYPE_122;
0101 break;
0102 case USB_ID_US224:
0103 id = USX2Y_TYPE_224;
0104 break;
0105 case USB_ID_US428:
0106 id = USX2Y_TYPE_428;
0107 break;
0108 }
0109 if (id < 0)
0110 return -ENODEV;
0111 strcpy(info->id, type_ids[id]);
0112 info->num_dsps = 2;
0113 if (us428->chip_status & USX2Y_STAT_CHIP_INIT)
0114 info->chip_ready = 1;
0115 info->version = USX2Y_DRIVER_VERSION;
0116 return 0;
0117 }
0118
0119 static int usx2y_create_usbmidi(struct snd_card *card)
0120 {
0121 static const struct snd_usb_midi_endpoint_info quirk_data_1 = {
0122 .out_ep = 0x06,
0123 .in_ep = 0x06,
0124 .out_cables = 0x001,
0125 .in_cables = 0x001
0126 };
0127 static const struct snd_usb_audio_quirk quirk_1 = {
0128 .vendor_name = "TASCAM",
0129 .product_name = NAME_ALLCAPS,
0130 .ifnum = 0,
0131 .type = QUIRK_MIDI_FIXED_ENDPOINT,
0132 .data = &quirk_data_1
0133 };
0134 static const struct snd_usb_midi_endpoint_info quirk_data_2 = {
0135 .out_ep = 0x06,
0136 .in_ep = 0x06,
0137 .out_cables = 0x003,
0138 .in_cables = 0x003
0139 };
0140 static const struct snd_usb_audio_quirk quirk_2 = {
0141 .vendor_name = "TASCAM",
0142 .product_name = "US428",
0143 .ifnum = 0,
0144 .type = QUIRK_MIDI_FIXED_ENDPOINT,
0145 .data = &quirk_data_2
0146 };
0147 struct usb_device *dev = usx2y(card)->dev;
0148 struct usb_interface *iface = usb_ifnum_to_if(dev, 0);
0149 const struct snd_usb_audio_quirk *quirk =
0150 le16_to_cpu(dev->descriptor.idProduct) == USB_ID_US428 ?
0151 &quirk_2 : &quirk_1;
0152
0153 snd_printdd("%s\n", __func__);
0154 return snd_usbmidi_create(card, iface, &usx2y(card)->midi_list, quirk);
0155 }
0156
0157 static int usx2y_create_alsa_devices(struct snd_card *card)
0158 {
0159 int err;
0160
0161 err = usx2y_create_usbmidi(card);
0162 if (err < 0) {
0163 snd_printk(KERN_ERR "%s: usx2y_create_usbmidi error %i\n", __func__, err);
0164 return err;
0165 }
0166 err = usx2y_audio_create(card);
0167 if (err < 0)
0168 return err;
0169 err = usx2y_hwdep_pcm_new(card);
0170 if (err < 0)
0171 return err;
0172 err = snd_card_register(card);
0173 if (err < 0)
0174 return err;
0175 return 0;
0176 }
0177
0178 static int snd_usx2y_hwdep_dsp_load(struct snd_hwdep *hw,
0179 struct snd_hwdep_dsp_image *dsp)
0180 {
0181 struct usx2ydev *priv = hw->private_data;
0182 struct usb_device *dev = priv->dev;
0183 int lret, err;
0184 char *buf;
0185
0186 snd_printdd("dsp_load %s\n", dsp->name);
0187
0188 buf = memdup_user(dsp->image, dsp->length);
0189 if (IS_ERR(buf))
0190 return PTR_ERR(buf);
0191
0192 err = usb_set_interface(dev, 0, 1);
0193 if (err)
0194 snd_printk(KERN_ERR "usb_set_interface error\n");
0195 else
0196 err = usb_bulk_msg(dev, usb_sndbulkpipe(dev, 2), buf, dsp->length, &lret, 6000);
0197 kfree(buf);
0198 if (err)
0199 return err;
0200 if (dsp->index == 1) {
0201 msleep(250);
0202 err = usx2y_async_seq04_init(priv);
0203 if (err) {
0204 snd_printk(KERN_ERR "usx2y_async_seq04_init error\n");
0205 return err;
0206 }
0207 err = usx2y_in04_init(priv);
0208 if (err) {
0209 snd_printk(KERN_ERR "usx2y_in04_init error\n");
0210 return err;
0211 }
0212 err = usx2y_create_alsa_devices(hw->card);
0213 if (err) {
0214 snd_printk(KERN_ERR "usx2y_create_alsa_devices error %i\n", err);
0215 return err;
0216 }
0217 priv->chip_status |= USX2Y_STAT_CHIP_INIT;
0218 snd_printdd("%s: alsa all started\n", hw->name);
0219 }
0220 return err;
0221 }
0222
0223 int usx2y_hwdep_new(struct snd_card *card, struct usb_device *device)
0224 {
0225 int err;
0226 struct snd_hwdep *hw;
0227 struct usx2ydev *us428 = usx2y(card);
0228
0229 err = snd_hwdep_new(card, SND_USX2Y_LOADER_ID, 0, &hw);
0230 if (err < 0)
0231 return err;
0232
0233 hw->iface = SNDRV_HWDEP_IFACE_USX2Y;
0234 hw->private_data = us428;
0235 hw->ops.dsp_status = snd_usx2y_hwdep_dsp_status;
0236 hw->ops.dsp_load = snd_usx2y_hwdep_dsp_load;
0237 hw->ops.mmap = snd_us428ctls_mmap;
0238 hw->ops.poll = snd_us428ctls_poll;
0239 hw->exclusive = 1;
0240 sprintf(hw->name, "/dev/bus/usb/%03d/%03d", device->bus->busnum, device->devnum);
0241
0242 us428->us428ctls_sharedmem = alloc_pages_exact(US428_SHAREDMEM_PAGES, GFP_KERNEL);
0243 if (!us428->us428ctls_sharedmem)
0244 return -ENOMEM;
0245 memset(us428->us428ctls_sharedmem, -1, US428_SHAREDMEM_PAGES);
0246 us428->us428ctls_sharedmem->ctl_snapshot_last = -2;
0247
0248 return 0;
0249 }