ia64/linux-2.6.18-xen.hg

view sound/usb/usx2y/usX2Yhwdep.c @ 890:2e94884f0e8d

Dom0 PCI: fix a regression introduced by the SR-IOV change

The device class may be changed during the early fixup. So need to
re-read the device class from pci_dev after the fixup.

The patch "PCI: centralize device setup code" (c/s 825) wrongly
cleaned up the device class re-read. This patch reverts that change.

Signed-off-by: Yu Zhao <yu.zhao@intel.com>
author Keir Fraser <keir.fraser@citrix.com>
date Wed Jun 03 11:21:52 2009 +0100 (2009-06-03)
parents 831230e53067
children
line source
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 */
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"
34 int usX2Y_hwdep_pcm_new(struct snd_card *card);
37 static 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;
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);
49 offset = area->vm_pgoff << PAGE_SHIFT;
50 offset += address - area->vm_start;
51 snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_OOM);
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);
57 if (type)
58 *type = VM_FAULT_MINOR;
60 return page;
61 }
63 static struct vm_operations_struct us428ctls_vm_ops = {
64 .nopage = snd_us428ctls_vm_nopage,
65 };
67 static 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;
72 // FIXME this hwdep interface is used twice: fpga download and mmap for controlling Lights etc. Maybe better using 2 hwdep devs?
73 // so as long as the device isn't fully initialised yet we return -EBUSY here.
74 if (!(us428->chip_status & USX2Y_STAT_CHIP_INIT))
75 return -EBUSY;
77 /* if userspace tries to mmap beyond end of our buffer, fail */
78 if (size > PAGE_ALIGN(sizeof(struct us428ctls_sharedmem))) {
79 snd_printd( "%lu > %lu\n", size, (unsigned long)sizeof(struct us428ctls_sharedmem));
80 return -EINVAL;
81 }
83 if (!us428->us428ctls_sharedmem) {
84 init_waitqueue_head(&us428->us428ctls_wait_queue_head);
85 if(!(us428->us428ctls_sharedmem = snd_malloc_pages(sizeof(struct us428ctls_sharedmem), GFP_KERNEL)))
86 return -ENOMEM;
87 memset(us428->us428ctls_sharedmem, -1, sizeof(struct us428ctls_sharedmem));
88 us428->us428ctls_sharedmem->CtlSnapShotLast = -2;
89 }
90 area->vm_ops = &us428ctls_vm_ops;
91 area->vm_flags |= VM_RESERVED;
92 area->vm_private_data = hw->private_data;
93 return 0;
94 }
96 static unsigned int snd_us428ctls_poll(struct snd_hwdep *hw, struct file *file, poll_table *wait)
97 {
98 unsigned int mask = 0;
99 struct usX2Ydev *us428 = hw->private_data;
100 struct us428ctls_sharedmem *shm = us428->us428ctls_sharedmem;
101 if (us428->chip_status & USX2Y_STAT_CHIP_HUP)
102 return POLLHUP;
104 poll_wait(file, &us428->us428ctls_wait_queue_head, wait);
106 if (shm != NULL && shm->CtlSnapShotLast != shm->CtlSnapShotRed)
107 mask |= POLLIN;
109 return mask;
110 }
113 static int snd_usX2Y_hwdep_open(struct snd_hwdep *hw, struct file *file)
114 {
115 return 0;
116 }
118 static int snd_usX2Y_hwdep_release(struct snd_hwdep *hw, struct file *file)
119 {
120 return 0;
121 }
123 static int snd_usX2Y_hwdep_dsp_status(struct snd_hwdep *hw,
124 struct snd_hwdep_dsp_status *info)
125 {
126 static char *type_ids[USX2Y_TYPE_NUMS] = {
127 [USX2Y_TYPE_122] = "us122",
128 [USX2Y_TYPE_224] = "us224",
129 [USX2Y_TYPE_428] = "us428",
130 };
131 struct usX2Ydev *us428 = hw->private_data;
132 int id = -1;
134 switch (le16_to_cpu(us428->chip.dev->descriptor.idProduct)) {
135 case USB_ID_US122:
136 id = USX2Y_TYPE_122;
137 break;
138 case USB_ID_US224:
139 id = USX2Y_TYPE_224;
140 break;
141 case USB_ID_US428:
142 id = USX2Y_TYPE_428;
143 break;
144 }
145 if (0 > id)
146 return -ENODEV;
147 strcpy(info->id, type_ids[id]);
148 info->num_dsps = 2; // 0: Prepad Data, 1: FPGA Code
149 if (us428->chip_status & USX2Y_STAT_CHIP_INIT)
150 info->chip_ready = 1;
151 info->version = USX2Y_DRIVER_VERSION;
152 return 0;
153 }
156 static int usX2Y_create_usbmidi(struct snd_card *card)
157 {
158 static struct snd_usb_midi_endpoint_info quirk_data_1 = {
159 .out_ep = 0x06,
160 .in_ep = 0x06,
161 .out_cables = 0x001,
162 .in_cables = 0x001
163 };
164 static struct snd_usb_audio_quirk quirk_1 = {
165 .vendor_name = "TASCAM",
166 .product_name = NAME_ALLCAPS,
167 .ifnum = 0,
168 .type = QUIRK_MIDI_FIXED_ENDPOINT,
169 .data = &quirk_data_1
170 };
171 static struct snd_usb_midi_endpoint_info quirk_data_2 = {
172 .out_ep = 0x06,
173 .in_ep = 0x06,
174 .out_cables = 0x003,
175 .in_cables = 0x003
176 };
177 static struct snd_usb_audio_quirk quirk_2 = {
178 .vendor_name = "TASCAM",
179 .product_name = "US428",
180 .ifnum = 0,
181 .type = QUIRK_MIDI_FIXED_ENDPOINT,
182 .data = &quirk_data_2
183 };
184 struct usb_device *dev = usX2Y(card)->chip.dev;
185 struct usb_interface *iface = usb_ifnum_to_if(dev, 0);
186 struct snd_usb_audio_quirk *quirk =
187 le16_to_cpu(dev->descriptor.idProduct) == USB_ID_US428 ?
188 &quirk_2 : &quirk_1;
190 snd_printdd("usX2Y_create_usbmidi \n");
191 return snd_usb_create_midi_interface(&usX2Y(card)->chip, iface, quirk);
192 }
194 static int usX2Y_create_alsa_devices(struct snd_card *card)
195 {
196 int err;
198 do {
199 if ((err = usX2Y_create_usbmidi(card)) < 0) {
200 snd_printk(KERN_ERR "usX2Y_create_alsa_devices: usX2Y_create_usbmidi error %i \n", err);
201 break;
202 }
203 if ((err = usX2Y_audio_create(card)) < 0)
204 break;
205 if ((err = usX2Y_hwdep_pcm_new(card)) < 0)
206 break;
207 if ((err = snd_card_register(card)) < 0)
208 break;
209 } while (0);
211 return err;
212 }
214 static int snd_usX2Y_hwdep_dsp_load(struct snd_hwdep *hw,
215 struct snd_hwdep_dsp_image *dsp)
216 {
217 struct usX2Ydev *priv = hw->private_data;
218 int lret, err = -EINVAL;
219 snd_printdd( "dsp_load %s\n", dsp->name);
221 if (access_ok(VERIFY_READ, dsp->image, dsp->length)) {
222 struct usb_device* dev = priv->chip.dev;
223 char *buf = kmalloc(dsp->length, GFP_KERNEL);
224 if (!buf)
225 return -ENOMEM;
226 if (copy_from_user(buf, dsp->image, dsp->length)) {
227 kfree(buf);
228 return -EFAULT;
229 }
230 err = usb_set_interface(dev, 0, 1);
231 if (err)
232 snd_printk(KERN_ERR "usb_set_interface error \n");
233 else
234 err = usb_bulk_msg(dev, usb_sndbulkpipe(dev, 2), buf, dsp->length, &lret, 6000);
235 kfree(buf);
236 }
237 if (err)
238 return err;
239 if (dsp->index == 1) {
240 msleep(250); // give the device some time
241 err = usX2Y_AsyncSeq04_init(priv);
242 if (err) {
243 snd_printk(KERN_ERR "usX2Y_AsyncSeq04_init error \n");
244 return err;
245 }
246 err = usX2Y_In04_init(priv);
247 if (err) {
248 snd_printk(KERN_ERR "usX2Y_In04_init error \n");
249 return err;
250 }
251 err = usX2Y_create_alsa_devices(hw->card);
252 if (err) {
253 snd_printk(KERN_ERR "usX2Y_create_alsa_devices error %i \n", err);
254 snd_card_free(hw->card);
255 return err;
256 }
257 priv->chip_status |= USX2Y_STAT_CHIP_INIT;
258 snd_printdd("%s: alsa all started\n", hw->name);
259 }
260 return err;
261 }
264 int usX2Y_hwdep_new(struct snd_card *card, struct usb_device* device)
265 {
266 int err;
267 struct snd_hwdep *hw;
269 if ((err = snd_hwdep_new(card, SND_USX2Y_LOADER_ID, 0, &hw)) < 0)
270 return err;
272 hw->iface = SNDRV_HWDEP_IFACE_USX2Y;
273 hw->private_data = usX2Y(card);
274 hw->ops.open = snd_usX2Y_hwdep_open;
275 hw->ops.release = snd_usX2Y_hwdep_release;
276 hw->ops.dsp_status = snd_usX2Y_hwdep_dsp_status;
277 hw->ops.dsp_load = snd_usX2Y_hwdep_dsp_load;
278 hw->ops.mmap = snd_us428ctls_mmap;
279 hw->ops.poll = snd_us428ctls_poll;
280 hw->exclusive = 1;
281 sprintf(hw->name, "/proc/bus/usb/%03d/%03d", device->bus->busnum, device->devnum);
282 return 0;
283 }