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10#include <linux/interrupt.h>
11#include <linux/slab.h>
12#include <linux/usb.h>
13#include <sound/core.h>
14#include <sound/memalloc.h>
15#include <sound/pcm.h>
16#include <sound/hwdep.h>
17#include "usx2y.h"
18#include "usbusx2y.h"
19#include "usX2Yhwdep.h"
20
21static vm_fault_t snd_us428ctls_vm_fault(struct vm_fault *vmf)
22{
23 unsigned long offset;
24 struct page * page;
25 void *vaddr;
26
27 snd_printdd("ENTER, start %lXh, pgoff %ld\n",
28 vmf->vma->vm_start,
29 vmf->pgoff);
30
31 offset = vmf->pgoff << PAGE_SHIFT;
32 vaddr = (char *)((struct usX2Ydev *)vmf->vma->vm_private_data)->us428ctls_sharedmem + offset;
33 page = virt_to_page(vaddr);
34 get_page(page);
35 vmf->page = page;
36
37 snd_printdd("vaddr=%p made us428ctls_vm_fault() page %p\n",
38 vaddr, page);
39
40 return 0;
41}
42
43static const struct vm_operations_struct us428ctls_vm_ops = {
44 .fault = snd_us428ctls_vm_fault,
45};
46
47static int snd_us428ctls_mmap(struct snd_hwdep * hw, struct file *filp, struct vm_area_struct *area)
48{
49 unsigned long size = (unsigned long)(area->vm_end - area->vm_start);
50 struct usX2Ydev *us428 = hw->private_data;
51
52
53
54 if (!(us428->chip_status & USX2Y_STAT_CHIP_INIT))
55 return -EBUSY;
56
57
58 if (size > PAGE_ALIGN(sizeof(struct us428ctls_sharedmem))) {
59 snd_printd( "%lu > %lu\n", size, (unsigned long)sizeof(struct us428ctls_sharedmem));
60 return -EINVAL;
61 }
62
63 if (!us428->us428ctls_sharedmem) {
64 init_waitqueue_head(&us428->us428ctls_wait_queue_head);
65 us428->us428ctls_sharedmem = alloc_pages_exact(sizeof(struct us428ctls_sharedmem), GFP_KERNEL);
66 if (!us428->us428ctls_sharedmem)
67 return -ENOMEM;
68 memset(us428->us428ctls_sharedmem, -1, sizeof(struct us428ctls_sharedmem));
69 us428->us428ctls_sharedmem->CtlSnapShotLast = -2;
70 }
71 area->vm_ops = &us428ctls_vm_ops;
72 area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
73 area->vm_private_data = hw->private_data;
74 return 0;
75}
76
77static __poll_t snd_us428ctls_poll(struct snd_hwdep *hw, struct file *file, poll_table *wait)
78{
79 __poll_t mask = 0;
80 struct usX2Ydev *us428 = hw->private_data;
81 struct us428ctls_sharedmem *shm = us428->us428ctls_sharedmem;
82 if (us428->chip_status & USX2Y_STAT_CHIP_HUP)
83 return EPOLLHUP;
84
85 poll_wait(file, &us428->us428ctls_wait_queue_head, wait);
86
87 if (shm != NULL && shm->CtlSnapShotLast != shm->CtlSnapShotRed)
88 mask |= EPOLLIN;
89
90 return mask;
91}
92
93
94static int snd_usX2Y_hwdep_dsp_status(struct snd_hwdep *hw,
95 struct snd_hwdep_dsp_status *info)
96{
97 static char *type_ids[USX2Y_TYPE_NUMS] = {
98 [USX2Y_TYPE_122] = "us122",
99 [USX2Y_TYPE_224] = "us224",
100 [USX2Y_TYPE_428] = "us428",
101 };
102 struct usX2Ydev *us428 = hw->private_data;
103 int id = -1;
104
105 switch (le16_to_cpu(us428->dev->descriptor.idProduct)) {
106 case USB_ID_US122:
107 id = USX2Y_TYPE_122;
108 break;
109 case USB_ID_US224:
110 id = USX2Y_TYPE_224;
111 break;
112 case USB_ID_US428:
113 id = USX2Y_TYPE_428;
114 break;
115 }
116 if (0 > id)
117 return -ENODEV;
118 strcpy(info->id, type_ids[id]);
119 info->num_dsps = 2;
120 if (us428->chip_status & USX2Y_STAT_CHIP_INIT)
121 info->chip_ready = 1;
122 info->version = USX2Y_DRIVER_VERSION;
123 return 0;
124}
125
126
127static int usX2Y_create_usbmidi(struct snd_card *card)
128{
129 static struct snd_usb_midi_endpoint_info quirk_data_1 = {
130 .out_ep = 0x06,
131 .in_ep = 0x06,
132 .out_cables = 0x001,
133 .in_cables = 0x001
134 };
135 static struct snd_usb_audio_quirk quirk_1 = {
136 .vendor_name = "TASCAM",
137 .product_name = NAME_ALLCAPS,
138 .ifnum = 0,
139 .type = QUIRK_MIDI_FIXED_ENDPOINT,
140 .data = &quirk_data_1
141 };
142 static struct snd_usb_midi_endpoint_info quirk_data_2 = {
143 .out_ep = 0x06,
144 .in_ep = 0x06,
145 .out_cables = 0x003,
146 .in_cables = 0x003
147 };
148 static struct snd_usb_audio_quirk quirk_2 = {
149 .vendor_name = "TASCAM",
150 .product_name = "US428",
151 .ifnum = 0,
152 .type = QUIRK_MIDI_FIXED_ENDPOINT,
153 .data = &quirk_data_2
154 };
155 struct usb_device *dev = usX2Y(card)->dev;
156 struct usb_interface *iface = usb_ifnum_to_if(dev, 0);
157 struct snd_usb_audio_quirk *quirk =
158 le16_to_cpu(dev->descriptor.idProduct) == USB_ID_US428 ?
159 &quirk_2 : &quirk_1;
160
161 snd_printdd("usX2Y_create_usbmidi \n");
162 return snd_usbmidi_create(card, iface, &usX2Y(card)->midi_list, quirk);
163}
164
165static int usX2Y_create_alsa_devices(struct snd_card *card)
166{
167 int err;
168
169 do {
170 if ((err = usX2Y_create_usbmidi(card)) < 0) {
171 snd_printk(KERN_ERR "usX2Y_create_alsa_devices: usX2Y_create_usbmidi error %i \n", err);
172 break;
173 }
174 if ((err = usX2Y_audio_create(card)) < 0)
175 break;
176 if ((err = usX2Y_hwdep_pcm_new(card)) < 0)
177 break;
178 if ((err = snd_card_register(card)) < 0)
179 break;
180 } while (0);
181
182 return err;
183}
184
185static int snd_usX2Y_hwdep_dsp_load(struct snd_hwdep *hw,
186 struct snd_hwdep_dsp_image *dsp)
187{
188 struct usX2Ydev *priv = hw->private_data;
189 struct usb_device* dev = priv->dev;
190 int lret, err;
191 char *buf;
192
193 snd_printdd( "dsp_load %s\n", dsp->name);
194
195 buf = memdup_user(dsp->image, dsp->length);
196 if (IS_ERR(buf))
197 return PTR_ERR(buf);
198
199 err = usb_set_interface(dev, 0, 1);
200 if (err)
201 snd_printk(KERN_ERR "usb_set_interface error \n");
202 else
203 err = usb_bulk_msg(dev, usb_sndbulkpipe(dev, 2), buf, dsp->length, &lret, 6000);
204 kfree(buf);
205 if (err)
206 return err;
207 if (dsp->index == 1) {
208 msleep(250);
209 err = usX2Y_AsyncSeq04_init(priv);
210 if (err) {
211 snd_printk(KERN_ERR "usX2Y_AsyncSeq04_init error \n");
212 return err;
213 }
214 err = usX2Y_In04_init(priv);
215 if (err) {
216 snd_printk(KERN_ERR "usX2Y_In04_init error \n");
217 return err;
218 }
219 err = usX2Y_create_alsa_devices(hw->card);
220 if (err) {
221 snd_printk(KERN_ERR "usX2Y_create_alsa_devices error %i \n", err);
222 snd_card_free(hw->card);
223 return err;
224 }
225 priv->chip_status |= USX2Y_STAT_CHIP_INIT;
226 snd_printdd("%s: alsa all started\n", hw->name);
227 }
228 return err;
229}
230
231
232int usX2Y_hwdep_new(struct snd_card *card, struct usb_device* device)
233{
234 int err;
235 struct snd_hwdep *hw;
236
237 if ((err = snd_hwdep_new(card, SND_USX2Y_LOADER_ID, 0, &hw)) < 0)
238 return err;
239
240 hw->iface = SNDRV_HWDEP_IFACE_USX2Y;
241 hw->private_data = usX2Y(card);
242 hw->ops.dsp_status = snd_usX2Y_hwdep_dsp_status;
243 hw->ops.dsp_load = snd_usX2Y_hwdep_dsp_load;
244 hw->ops.mmap = snd_us428ctls_mmap;
245 hw->ops.poll = snd_us428ctls_poll;
246 hw->exclusive = 1;
247 sprintf(hw->name, "/dev/bus/usb/%03d/%03d", device->bus->busnum, device->devnum);
248 return 0;
249}
250
251
