]>
Commit | Line | Data |
---|---|---|
523f1dce DM |
1 | /* |
2 | * Copyright (c) 2006,2007 Daniel Mack | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
17 | */ | |
18 | ||
f1f6b8f6 | 19 | #include <linux/device.h> |
523f1dce | 20 | #include <linux/usb.h> |
5a0e3ad6 | 21 | #include <linux/gfp.h> |
523f1dce | 22 | #include <sound/rawmidi.h> |
e431cf45 | 23 | #include <sound/core.h> |
523f1dce DM |
24 | #include <sound/pcm.h> |
25 | ||
936e7d03 DM |
26 | #include "device.h" |
27 | #include "midi.h" | |
523f1dce | 28 | |
523f1dce DM |
29 | static int snd_usb_caiaq_midi_input_open(struct snd_rawmidi_substream *substream) |
30 | { | |
31 | return 0; | |
32 | } | |
33 | ||
34 | static int snd_usb_caiaq_midi_input_close(struct snd_rawmidi_substream *substream) | |
35 | { | |
36 | return 0; | |
37 | } | |
38 | ||
39 | static void snd_usb_caiaq_midi_input_trigger(struct snd_rawmidi_substream *substream, int up) | |
40 | { | |
1c8470ce | 41 | struct snd_usb_caiaqdev *cdev = substream->rmidi->private_data; |
523f1dce | 42 | |
1c8470ce | 43 | if (!cdev) |
523f1dce | 44 | return; |
9318dce5 | 45 | |
1c8470ce | 46 | cdev->midi_receive_substream = up ? substream : NULL; |
523f1dce DM |
47 | } |
48 | ||
49 | ||
50 | static int snd_usb_caiaq_midi_output_open(struct snd_rawmidi_substream *substream) | |
51 | { | |
52 | return 0; | |
53 | } | |
54 | ||
55 | static int snd_usb_caiaq_midi_output_close(struct snd_rawmidi_substream *substream) | |
56 | { | |
1c8470ce DM |
57 | struct snd_usb_caiaqdev *cdev = substream->rmidi->private_data; |
58 | if (cdev->midi_out_active) { | |
59 | usb_kill_urb(&cdev->midi_out_urb); | |
60 | cdev->midi_out_active = 0; | |
f3f80a92 | 61 | } |
523f1dce DM |
62 | return 0; |
63 | } | |
64 | ||
1c8470ce | 65 | static void snd_usb_caiaq_midi_send(struct snd_usb_caiaqdev *cdev, |
523f1dce DM |
66 | struct snd_rawmidi_substream *substream) |
67 | { | |
68 | int len, ret; | |
f1f6b8f6 | 69 | struct device *dev = caiaqdev_to_dev(cdev); |
9318dce5 | 70 | |
1c8470ce DM |
71 | cdev->midi_out_buf[0] = EP1_CMD_MIDI_WRITE; |
72 | cdev->midi_out_buf[1] = 0; /* port */ | |
73 | len = snd_rawmidi_transmit(substream, cdev->midi_out_buf + 3, | |
f3f80a92 | 74 | EP1_BUFSIZE - 3); |
9318dce5 | 75 | |
523f1dce DM |
76 | if (len <= 0) |
77 | return; | |
9318dce5 | 78 | |
1c8470ce DM |
79 | cdev->midi_out_buf[2] = len; |
80 | cdev->midi_out_urb.transfer_buffer_length = len+3; | |
9318dce5 | 81 | |
1c8470ce | 82 | ret = usb_submit_urb(&cdev->midi_out_urb, GFP_ATOMIC); |
523f1dce | 83 | if (ret < 0) |
f1f6b8f6 DM |
84 | dev_err(dev, |
85 | "snd_usb_caiaq_midi_send(%p): usb_submit_urb() failed," | |
86 | "ret=%d, len=%d\n", substream, ret, len); | |
f3f80a92 | 87 | else |
1c8470ce | 88 | cdev->midi_out_active = 1; |
523f1dce DM |
89 | } |
90 | ||
91 | static void snd_usb_caiaq_midi_output_trigger(struct snd_rawmidi_substream *substream, int up) | |
92 | { | |
1c8470ce | 93 | struct snd_usb_caiaqdev *cdev = substream->rmidi->private_data; |
9318dce5 | 94 | |
f3f80a92 | 95 | if (up) { |
1c8470ce DM |
96 | cdev->midi_out_substream = substream; |
97 | if (!cdev->midi_out_active) | |
98 | snd_usb_caiaq_midi_send(cdev, substream); | |
f3f80a92 | 99 | } else { |
1c8470ce | 100 | cdev->midi_out_substream = NULL; |
523f1dce | 101 | } |
523f1dce DM |
102 | } |
103 | ||
104 | ||
105 | static struct snd_rawmidi_ops snd_usb_caiaq_midi_output = | |
106 | { | |
107 | .open = snd_usb_caiaq_midi_output_open, | |
108 | .close = snd_usb_caiaq_midi_output_close, | |
109 | .trigger = snd_usb_caiaq_midi_output_trigger, | |
110 | }; | |
111 | ||
112 | static struct snd_rawmidi_ops snd_usb_caiaq_midi_input = | |
113 | { | |
114 | .open = snd_usb_caiaq_midi_input_open, | |
115 | .close = snd_usb_caiaq_midi_input_close, | |
116 | .trigger = snd_usb_caiaq_midi_input_trigger, | |
117 | }; | |
118 | ||
1c8470ce | 119 | void snd_usb_caiaq_midi_handle_input(struct snd_usb_caiaqdev *cdev, |
523f1dce DM |
120 | int port, const char *buf, int len) |
121 | { | |
1c8470ce | 122 | if (!cdev->midi_receive_substream) |
523f1dce | 123 | return; |
9318dce5 | 124 | |
1c8470ce | 125 | snd_rawmidi_receive(cdev->midi_receive_substream, buf, len); |
523f1dce DM |
126 | } |
127 | ||
599c3e76 | 128 | int snd_usb_caiaq_midi_init(struct snd_usb_caiaqdev *device) |
523f1dce DM |
129 | { |
130 | int ret; | |
131 | struct snd_rawmidi *rmidi; | |
132 | ||
133 | ret = snd_rawmidi_new(device->chip.card, device->product_name, 0, | |
134 | device->spec.num_midi_out, | |
135 | device->spec.num_midi_in, | |
136 | &rmidi); | |
137 | ||
138 | if (ret < 0) | |
139 | return ret; | |
140 | ||
eaae55da | 141 | strlcpy(rmidi->name, device->product_name, sizeof(rmidi->name)); |
523f1dce DM |
142 | |
143 | rmidi->info_flags = SNDRV_RAWMIDI_INFO_DUPLEX; | |
144 | rmidi->private_data = device; | |
145 | ||
146 | if (device->spec.num_midi_out > 0) { | |
147 | rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; | |
9318dce5 | 148 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, |
523f1dce DM |
149 | &snd_usb_caiaq_midi_output); |
150 | } | |
151 | ||
152 | if (device->spec.num_midi_in > 0) { | |
153 | rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; | |
9318dce5 | 154 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, |
523f1dce DM |
155 | &snd_usb_caiaq_midi_input); |
156 | } | |
9318dce5 | 157 | |
523f1dce DM |
158 | device->rmidi = rmidi; |
159 | ||
160 | return 0; | |
161 | } | |
162 | ||
163 | void snd_usb_caiaq_midi_output_done(struct urb* urb) | |
164 | { | |
1c8470ce | 165 | struct snd_usb_caiaqdev *cdev = urb->context; |
9318dce5 | 166 | |
1c8470ce | 167 | cdev->midi_out_active = 0; |
523f1dce DM |
168 | if (urb->status != 0) |
169 | return; | |
170 | ||
1c8470ce | 171 | if (!cdev->midi_out_substream) |
523f1dce DM |
172 | return; |
173 | ||
1c8470ce | 174 | snd_usb_caiaq_midi_send(cdev, cdev->midi_out_substream); |
523f1dce | 175 | } |