1/* 2 * Driver for Tascam US-X2Y USB soundcards 3 * 4 * FPGA Loader + ALSA Startup 5 * 6 * Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 */ 22 23#include <sound/driver.h> 24#include <linux/interrupt.h> 25#include <linux/usb.h> 26#include <sound/core.h> 27#include <sound/memalloc.h> 28#include <sound/pcm.h> 29#include <sound/hwdep.h> 30#include "usx2y.h" 31#include "usbusx2y.h" 32#include "usX2Yhwdep.h" 33 34int usX2Y_hwdep_pcm_new(struct snd_card *card); 35 36 37static struct page * snd_us428ctls_vm_nopage(struct vm_area_struct *area, unsigned long address, int *type) 38{ 39 unsigned long offset; 40 struct page * page; 41 void *vaddr; 42 43 snd_printdd("ENTER, start %lXh, ofs %lXh, pgoff %ld, addr %lXh\n", 44 area->vm_start, 45 address - area->vm_start, 46 (address - area->vm_start) >> PAGE_SHIFT, 47 address); 48 49 offset = area->vm_pgoff << PAGE_SHIFT; 50 offset += address - area->vm_start; 51 snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_SIGBUS); 52 vaddr = (char*)((struct usX2Ydev *)area->vm_private_data)->us428ctls_sharedmem + offset; 53 page = virt_to_page(vaddr); 54 get_page(page); 55 snd_printdd( "vaddr=%p made us428ctls_vm_nopage() return %p; offset=%lX\n", vaddr, page, offset); 56 57 if (type) 58 *type = VM_FAULT_MINOR; 59 60 return page; 61} 62 63static struct vm_operations_struct us428ctls_vm_ops = { 64 .nopage = snd_us428ctls_vm_nopage, 65}; 66 67static int snd_us428ctls_mmap(struct snd_hwdep * hw, struct file *filp, struct vm_area_struct *area) 68{ 69 unsigned long size = (unsigned long)(area->vm_end - area->vm_start); 70 struct usX2Ydev *us428 = hw->private_data; 71 72 // so as long as the device isn't fully initialised yet we return -EBUSY here. 73 if (!(us428->chip_status & USX2Y_STAT_CHIP_INIT)) 74 return -EBUSY; 75 76 /* if userspace tries to mmap beyond end of our buffer, fail */ 77 if (size > PAGE_ALIGN(sizeof(struct us428ctls_sharedmem))) { 78 snd_printd( "%lu > %lu\n", size, (unsigned long)sizeof(struct us428ctls_sharedmem)); 79 return -EINVAL; 80 } 81 82 if (!us428->us428ctls_sharedmem) { 83 init_waitqueue_head(&us428->us428ctls_wait_queue_head); 84 if(!(us428->us428ctls_sharedmem = snd_malloc_pages(sizeof(struct us428ctls_sharedmem), GFP_KERNEL))) 85 return -ENOMEM; 86 memset(us428->us428ctls_sharedmem, -1, sizeof(struct us428ctls_sharedmem)); 87 us428->us428ctls_sharedmem->CtlSnapShotLast = -2; 88 } 89 area->vm_ops = &us428ctls_vm_ops; 90 area->vm_flags |= VM_RESERVED; 91 area->vm_private_data = hw->private_data; 92 return 0; 93} 94 95static unsigned int snd_us428ctls_poll(struct snd_hwdep *hw, struct file *file, poll_table *wait) 96{ 97 unsigned int mask = 0; 98 struct usX2Ydev *us428 = hw->private_data; 99 struct us428ctls_sharedmem *shm = us428->us428ctls_sharedmem; 100 if (us428->chip_status & USX2Y_STAT_CHIP_HUP) 101 return POLLHUP; 102 103 poll_wait(file, &us428->us428ctls_wait_queue_head, wait); 104 105 if (shm != NULL && shm->CtlSnapShotLast != shm->CtlSnapShotRed) 106 mask |= POLLIN; 107 108 return mask; 109} 110 111 112static int snd_usX2Y_hwdep_open(struct snd_hwdep *hw, struct file *file) 113{ 114 return 0; 115} 116 117static int snd_usX2Y_hwdep_release(struct snd_hwdep *hw, struct file *file) 118{ 119 return 0; 120} 121 122static int snd_usX2Y_hwdep_dsp_status(struct snd_hwdep *hw, 123 struct snd_hwdep_dsp_status *info) 124{ 125 static char *type_ids[USX2Y_TYPE_NUMS] = { 126 [USX2Y_TYPE_122] = "us122", 127 [USX2Y_TYPE_224] = "us224", 128 [USX2Y_TYPE_428] = "us428", 129 }; 130 struct usX2Ydev *us428 = hw->private_data; 131 int id = -1; 132 133 switch (le16_to_cpu(us428->chip.dev->descriptor.idProduct)) { 134 case USB_ID_US122: 135 id = USX2Y_TYPE_122; 136 break; 137 case USB_ID_US224: 138 id = USX2Y_TYPE_224; 139 break; 140 case USB_ID_US428: 141 id = USX2Y_TYPE_428; 142 break; 143 } 144 if (0 > id) 145 return -ENODEV; 146 strcpy(info->id, type_ids[id]); 147 info->num_dsps = 2; // 0: Prepad Data, 1: FPGA Code 148 if (us428->chip_status & USX2Y_STAT_CHIP_INIT) 149 info->chip_ready = 1; 150 info->version = USX2Y_DRIVER_VERSION; 151 return 0; 152} 153 154 155static int usX2Y_create_usbmidi(struct snd_card *card) 156{ 157 static struct snd_usb_midi_endpoint_info quirk_data_1 = { 158 .out_ep = 0x06, 159 .in_ep = 0x06, 160 .out_cables = 0x001, 161 .in_cables = 0x001 162 }; 163 static struct snd_usb_audio_quirk quirk_1 = { 164 .vendor_name = "TASCAM", 165 .product_name = NAME_ALLCAPS, 166 .ifnum = 0, 167 .type = QUIRK_MIDI_FIXED_ENDPOINT, 168 .data = &quirk_data_1 169 }; 170 static struct snd_usb_midi_endpoint_info quirk_data_2 = { 171 .out_ep = 0x06, 172 .in_ep = 0x06, 173 .out_cables = 0x003, 174 .in_cables = 0x003 175 }; 176 static struct snd_usb_audio_quirk quirk_2 = { 177 .vendor_name = "TASCAM", 178 .product_name = "US428", 179 .ifnum = 0, 180 .type = QUIRK_MIDI_FIXED_ENDPOINT, 181 .data = &quirk_data_2 182 }; 183 struct usb_device *dev = usX2Y(card)->chip.dev; 184 struct usb_interface *iface = usb_ifnum_to_if(dev, 0); 185 struct snd_usb_audio_quirk *quirk = 186 le16_to_cpu(dev->descriptor.idProduct) == USB_ID_US428 ? 187 &quirk_2 : &quirk_1; 188 189 snd_printdd("usX2Y_create_usbmidi \n"); 190 return snd_usb_create_midi_interface(&usX2Y(card)->chip, iface, quirk); 191} 192 193static int usX2Y_create_alsa_devices(struct snd_card *card) 194{ 195 int err; 196 197 do { 198 if ((err = usX2Y_create_usbmidi(card)) < 0) { 199 snd_printk(KERN_ERR "usX2Y_create_alsa_devices: usX2Y_create_usbmidi error %i \n", err); 200 break; 201 } 202 if ((err = usX2Y_audio_create(card)) < 0) 203 break; 204 if ((err = usX2Y_hwdep_pcm_new(card)) < 0) 205 break; 206 if ((err = snd_card_register(card)) < 0) 207 break; 208 } while (0); 209 210 return err; 211} 212 213static int snd_usX2Y_hwdep_dsp_load(struct snd_hwdep *hw, 214 struct snd_hwdep_dsp_image *dsp) 215{ 216 struct usX2Ydev *priv = hw->private_data; 217 int lret, err = -EINVAL; 218 snd_printdd( "dsp_load %s\n", dsp->name); 219 220 if (access_ok(VERIFY_READ, dsp->image, dsp->length)) { 221 struct usb_device* dev = priv->chip.dev; 222 char *buf = kmalloc(dsp->length, GFP_KERNEL); 223 if (!buf) 224 return -ENOMEM; 225 if (copy_from_user(buf, dsp->image, dsp->length)) { 226 kfree(buf); 227 return -EFAULT; 228 } 229 err = usb_set_interface(dev, 0, 1); 230 if (err) 231 snd_printk(KERN_ERR "usb_set_interface error \n"); 232 else 233 err = usb_bulk_msg(dev, usb_sndbulkpipe(dev, 2), buf, dsp->length, &lret, 6000); 234 kfree(buf); 235 } 236 if (err) 237 return err; 238 if (dsp->index == 1) { 239 msleep(250); // give the device some time 240 err = usX2Y_AsyncSeq04_init(priv); 241 if (err) { 242 snd_printk(KERN_ERR "usX2Y_AsyncSeq04_init error \n"); 243 return err; 244 } 245 err = usX2Y_In04_init(priv); 246 if (err) { 247 snd_printk(KERN_ERR "usX2Y_In04_init error \n"); 248 return err; 249 } 250 err = usX2Y_create_alsa_devices(hw->card); 251 if (err) { 252 snd_printk(KERN_ERR "usX2Y_create_alsa_devices error %i \n", err); 253 snd_card_free(hw->card); 254 return err; 255 } 256 priv->chip_status |= USX2Y_STAT_CHIP_INIT; 257 snd_printdd("%s: alsa all started\n", hw->name); 258 } 259 return err; 260} 261 262 263int usX2Y_hwdep_new(struct snd_card *card, struct usb_device* device) 264{ 265 int err; 266 struct snd_hwdep *hw; 267 268 if ((err = snd_hwdep_new(card, SND_USX2Y_LOADER_ID, 0, &hw)) < 0) 269 return err; 270 271 hw->iface = SNDRV_HWDEP_IFACE_USX2Y; 272 hw->private_data = usX2Y(card); 273 hw->ops.open = snd_usX2Y_hwdep_open; 274 hw->ops.release = snd_usX2Y_hwdep_release; 275 hw->ops.dsp_status = snd_usX2Y_hwdep_dsp_status; 276 hw->ops.dsp_load = snd_usX2Y_hwdep_dsp_load; 277 hw->ops.mmap = snd_us428ctls_mmap; 278 hw->ops.poll = snd_us428ctls_poll; 279 hw->exclusive = 1; 280 sprintf(hw->name, "/proc/bus/usb/%03d/%03d", device->bus->busnum, device->devnum); 281 return 0; 282} 283