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8#include <linux/export.h>
9#include "opl3_voice.h"
10
11static int snd_opl3_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure);
12static int snd_opl3_close_seq_oss(struct snd_seq_oss_arg *arg);
13static int snd_opl3_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, unsigned long ioarg);
14static int snd_opl3_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format, const char __user *buf, int offs, int count);
15static int snd_opl3_reset_seq_oss(struct snd_seq_oss_arg *arg);
16
17
18
19static const struct snd_seq_oss_callback oss_callback = {
20 .owner = THIS_MODULE,
21 .open = snd_opl3_open_seq_oss,
22 .close = snd_opl3_close_seq_oss,
23 .ioctl = snd_opl3_ioctl_seq_oss,
24 .load_patch = snd_opl3_load_patch_seq_oss,
25 .reset = snd_opl3_reset_seq_oss,
26};
27
28static int snd_opl3_oss_event_input(struct snd_seq_event *ev, int direct,
29 void *private_data, int atomic, int hop)
30{
31 struct snd_opl3 *opl3 = private_data;
32
33 if (ev->type != SNDRV_SEQ_EVENT_OSS)
34 snd_midi_process_event(&opl3_ops, ev, opl3->oss_chset);
35 return 0;
36}
37
38
39
40static void snd_opl3_oss_free_port(void *private_data)
41{
42 struct snd_opl3 *opl3 = private_data;
43
44 snd_midi_channel_free_set(opl3->oss_chset);
45}
46
47static int snd_opl3_oss_create_port(struct snd_opl3 * opl3)
48{
49 struct snd_seq_port_callback callbacks;
50 char name[32];
51 int voices, opl_ver;
52
53 voices = (opl3->hardware < OPL3_HW_OPL3) ?
54 MAX_OPL2_VOICES : MAX_OPL3_VOICES;
55 opl3->oss_chset = snd_midi_channel_alloc_set(voices);
56 if (opl3->oss_chset == NULL)
57 return -ENOMEM;
58 opl3->oss_chset->private_data = opl3;
59
60 memset(&callbacks, 0, sizeof(callbacks));
61 callbacks.owner = THIS_MODULE;
62 callbacks.event_input = snd_opl3_oss_event_input;
63 callbacks.private_free = snd_opl3_oss_free_port;
64 callbacks.private_data = opl3;
65
66 opl_ver = (opl3->hardware & OPL3_HW_MASK) >> 8;
67 sprintf(name, "OPL%i OSS Port", opl_ver);
68
69 opl3->oss_chset->client = opl3->seq_client;
70 opl3->oss_chset->port = snd_seq_event_port_attach(opl3->seq_client, &callbacks,
71 SNDRV_SEQ_PORT_CAP_WRITE,
72 SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |
73 SNDRV_SEQ_PORT_TYPE_MIDI_GM |
74 SNDRV_SEQ_PORT_TYPE_HARDWARE |
75 SNDRV_SEQ_PORT_TYPE_SYNTHESIZER,
76 voices, voices,
77 name);
78 if (opl3->oss_chset->port < 0) {
79 int port;
80 port = opl3->oss_chset->port;
81 snd_midi_channel_free_set(opl3->oss_chset);
82 return port;
83 }
84 return 0;
85}
86
87
88
89
90void snd_opl3_init_seq_oss(struct snd_opl3 *opl3, char *name)
91{
92 struct snd_seq_oss_reg *arg;
93 struct snd_seq_device *dev;
94
95 if (snd_seq_device_new(opl3->card, 0, SNDRV_SEQ_DEV_ID_OSS,
96 sizeof(struct snd_seq_oss_reg), &dev) < 0)
97 return;
98
99 opl3->oss_seq_dev = dev;
100 strlcpy(dev->name, name, sizeof(dev->name));
101 arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
102 arg->type = SYNTH_TYPE_FM;
103 if (opl3->hardware < OPL3_HW_OPL3) {
104 arg->subtype = FM_TYPE_ADLIB;
105 arg->nvoices = MAX_OPL2_VOICES;
106 } else {
107 arg->subtype = FM_TYPE_OPL3;
108 arg->nvoices = MAX_OPL3_VOICES;
109 }
110 arg->oper = oss_callback;
111 arg->private_data = opl3;
112
113 if (snd_opl3_oss_create_port(opl3)) {
114
115 snd_device_register(opl3->card, dev);
116 }
117}
118
119
120void snd_opl3_free_seq_oss(struct snd_opl3 *opl3)
121{
122 if (opl3->oss_seq_dev) {
123
124 opl3->oss_seq_dev = NULL;
125 }
126}
127
128
129
130
131static int snd_opl3_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure)
132{
133 struct snd_opl3 *opl3 = closure;
134 int err;
135
136 if (snd_BUG_ON(!arg))
137 return -ENXIO;
138
139 if ((err = snd_opl3_synth_setup(opl3)) < 0)
140 return err;
141
142
143 arg->private_data = opl3;
144 arg->addr.client = opl3->oss_chset->client;
145 arg->addr.port = opl3->oss_chset->port;
146
147 if ((err = snd_opl3_synth_use_inc(opl3)) < 0)
148 return err;
149
150 opl3->synth_mode = SNDRV_OPL3_MODE_SYNTH;
151 return 0;
152}
153
154
155static int snd_opl3_close_seq_oss(struct snd_seq_oss_arg *arg)
156{
157 struct snd_opl3 *opl3;
158
159 if (snd_BUG_ON(!arg))
160 return -ENXIO;
161 opl3 = arg->private_data;
162
163 snd_opl3_synth_cleanup(opl3);
164
165 snd_opl3_synth_use_dec(opl3);
166 return 0;
167}
168
169
170
171
172#define SBFM_MAXINSTR 256
173
174static int snd_opl3_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
175 const char __user *buf, int offs, int count)
176{
177 struct snd_opl3 *opl3;
178 struct sbi_instrument sbi;
179 char name[32];
180 int err, type;
181
182 if (snd_BUG_ON(!arg))
183 return -ENXIO;
184 opl3 = arg->private_data;
185
186 if (format == FM_PATCH)
187 type = FM_PATCH_OPL2;
188 else if (format == OPL3_PATCH)
189 type = FM_PATCH_OPL3;
190 else
191 return -EINVAL;
192
193 if (count < (int)sizeof(sbi)) {
194 snd_printk(KERN_ERR "FM Error: Patch record too short\n");
195 return -EINVAL;
196 }
197 if (copy_from_user(&sbi, buf, sizeof(sbi)))
198 return -EFAULT;
199
200 if (sbi.channel < 0 || sbi.channel >= SBFM_MAXINSTR) {
201 snd_printk(KERN_ERR "FM Error: Invalid instrument number %d\n",
202 sbi.channel);
203 return -EINVAL;
204 }
205
206 memset(name, 0, sizeof(name));
207 sprintf(name, "Chan%d", sbi.channel);
208
209 err = snd_opl3_load_patch(opl3, sbi.channel, 127, type, name, NULL,
210 sbi.operators);
211 if (err < 0)
212 return err;
213
214 return sizeof(sbi);
215}
216
217
218static int snd_opl3_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd,
219 unsigned long ioarg)
220{
221 if (snd_BUG_ON(!arg))
222 return -ENXIO;
223 switch (cmd) {
224 case SNDCTL_FM_LOAD_INSTR:
225 snd_printk(KERN_ERR "OPL3: "
226 "Obsolete ioctl(SNDCTL_FM_LOAD_INSTR) used. "
227 "Fix the program.\n");
228 return -EINVAL;
229
230 case SNDCTL_SYNTH_MEMAVL:
231 return 0x7fffffff;
232
233 case SNDCTL_FM_4OP_ENABLE:
234
235 return 0;
236
237 default:
238 return -EINVAL;
239 }
240 return 0;
241}
242
243
244static int snd_opl3_reset_seq_oss(struct snd_seq_oss_arg *arg)
245{
246 if (snd_BUG_ON(!arg))
247 return -ENXIO;
248
249 return 0;
250}
251
