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21#include <linux/export.h>
22#include "opl3_voice.h"
23
24static int snd_opl3_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure);
25static int snd_opl3_close_seq_oss(struct snd_seq_oss_arg *arg);
26static int snd_opl3_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, unsigned long ioarg);
27static int snd_opl3_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format, const char __user *buf, int offs, int count);
28static int snd_opl3_reset_seq_oss(struct snd_seq_oss_arg *arg);
29
30
31
32static struct snd_seq_oss_callback oss_callback = {
33 .owner = THIS_MODULE,
34 .open = snd_opl3_open_seq_oss,
35 .close = snd_opl3_close_seq_oss,
36 .ioctl = snd_opl3_ioctl_seq_oss,
37 .load_patch = snd_opl3_load_patch_seq_oss,
38 .reset = snd_opl3_reset_seq_oss,
39};
40
41static int snd_opl3_oss_event_input(struct snd_seq_event *ev, int direct,
42 void *private_data, int atomic, int hop)
43{
44 struct snd_opl3 *opl3 = private_data;
45
46 if (ev->type != SNDRV_SEQ_EVENT_OSS)
47 snd_midi_process_event(&opl3_ops, ev, opl3->oss_chset);
48 return 0;
49}
50
51
52
53static void snd_opl3_oss_free_port(void *private_data)
54{
55 struct snd_opl3 *opl3 = private_data;
56
57 snd_midi_channel_free_set(opl3->oss_chset);
58}
59
60static int snd_opl3_oss_create_port(struct snd_opl3 * opl3)
61{
62 struct snd_seq_port_callback callbacks;
63 char name[32];
64 int voices, opl_ver;
65
66 voices = (opl3->hardware < OPL3_HW_OPL3) ?
67 MAX_OPL2_VOICES : MAX_OPL3_VOICES;
68 opl3->oss_chset = snd_midi_channel_alloc_set(voices);
69 if (opl3->oss_chset == NULL)
70 return -ENOMEM;
71 opl3->oss_chset->private_data = opl3;
72
73 memset(&callbacks, 0, sizeof(callbacks));
74 callbacks.owner = THIS_MODULE;
75 callbacks.event_input = snd_opl3_oss_event_input;
76 callbacks.private_free = snd_opl3_oss_free_port;
77 callbacks.private_data = opl3;
78
79 opl_ver = (opl3->hardware & OPL3_HW_MASK) >> 8;
80 sprintf(name, "OPL%i OSS Port", opl_ver);
81
82 opl3->oss_chset->client = opl3->seq_client;
83 opl3->oss_chset->port = snd_seq_event_port_attach(opl3->seq_client, &callbacks,
84 SNDRV_SEQ_PORT_CAP_WRITE,
85 SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |
86 SNDRV_SEQ_PORT_TYPE_MIDI_GM |
87 SNDRV_SEQ_PORT_TYPE_HARDWARE |
88 SNDRV_SEQ_PORT_TYPE_SYNTHESIZER,
89 voices, voices,
90 name);
91 if (opl3->oss_chset->port < 0) {
92 int port;
93 port = opl3->oss_chset->port;
94 snd_midi_channel_free_set(opl3->oss_chset);
95 return port;
96 }
97 return 0;
98}
99
100
101
102
103void snd_opl3_init_seq_oss(struct snd_opl3 *opl3, char *name)
104{
105 struct snd_seq_oss_reg *arg;
106 struct snd_seq_device *dev;
107
108 if (snd_seq_device_new(opl3->card, 0, SNDRV_SEQ_DEV_ID_OSS,
109 sizeof(struct snd_seq_oss_reg), &dev) < 0)
110 return;
111
112 opl3->oss_seq_dev = dev;
113 strlcpy(dev->name, name, sizeof(dev->name));
114 arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
115 arg->type = SYNTH_TYPE_FM;
116 if (opl3->hardware < OPL3_HW_OPL3) {
117 arg->subtype = FM_TYPE_ADLIB;
118 arg->nvoices = MAX_OPL2_VOICES;
119 } else {
120 arg->subtype = FM_TYPE_OPL3;
121 arg->nvoices = MAX_OPL3_VOICES;
122 }
123 arg->oper = oss_callback;
124 arg->private_data = opl3;
125
126 if (snd_opl3_oss_create_port(opl3)) {
127
128 snd_device_register(opl3->card, dev);
129 }
130}
131
132
133void snd_opl3_free_seq_oss(struct snd_opl3 *opl3)
134{
135 if (opl3->oss_seq_dev) {
136
137 opl3->oss_seq_dev = NULL;
138 }
139}
140
141
142
143
144static int snd_opl3_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure)
145{
146 struct snd_opl3 *opl3 = closure;
147 int err;
148
149 if (snd_BUG_ON(!arg))
150 return -ENXIO;
151
152 if ((err = snd_opl3_synth_setup(opl3)) < 0)
153 return err;
154
155
156 arg->private_data = opl3;
157 arg->addr.client = opl3->oss_chset->client;
158 arg->addr.port = opl3->oss_chset->port;
159
160 if ((err = snd_opl3_synth_use_inc(opl3)) < 0)
161 return err;
162
163 opl3->synth_mode = SNDRV_OPL3_MODE_SYNTH;
164 return 0;
165}
166
167
168static int snd_opl3_close_seq_oss(struct snd_seq_oss_arg *arg)
169{
170 struct snd_opl3 *opl3;
171
172 if (snd_BUG_ON(!arg))
173 return -ENXIO;
174 opl3 = arg->private_data;
175
176 snd_opl3_synth_cleanup(opl3);
177
178 snd_opl3_synth_use_dec(opl3);
179 return 0;
180}
181
182
183
184
185#define SBFM_MAXINSTR 256
186
187static int snd_opl3_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
188 const char __user *buf, int offs, int count)
189{
190 struct snd_opl3 *opl3;
191 struct sbi_instrument sbi;
192 char name[32];
193 int err, type;
194
195 if (snd_BUG_ON(!arg))
196 return -ENXIO;
197 opl3 = arg->private_data;
198
199 if (format == FM_PATCH)
200 type = FM_PATCH_OPL2;
201 else if (format == OPL3_PATCH)
202 type = FM_PATCH_OPL3;
203 else
204 return -EINVAL;
205
206 if (count < (int)sizeof(sbi)) {
207 snd_printk(KERN_ERR "FM Error: Patch record too short\n");
208 return -EINVAL;
209 }
210 if (copy_from_user(&sbi, buf, sizeof(sbi)))
211 return -EFAULT;
212
213 if (sbi.channel < 0 || sbi.channel >= SBFM_MAXINSTR) {
214 snd_printk(KERN_ERR "FM Error: Invalid instrument number %d\n",
215 sbi.channel);
216 return -EINVAL;
217 }
218
219 memset(name, 0, sizeof(name));
220 sprintf(name, "Chan%d", sbi.channel);
221
222 err = snd_opl3_load_patch(opl3, sbi.channel, 127, type, name, NULL,
223 sbi.operators);
224 if (err < 0)
225 return err;
226
227 return sizeof(sbi);
228}
229
230
231static int snd_opl3_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd,
232 unsigned long ioarg)
233{
234 if (snd_BUG_ON(!arg))
235 return -ENXIO;
236 switch (cmd) {
237 case SNDCTL_FM_LOAD_INSTR:
238 snd_printk(KERN_ERR "OPL3: "
239 "Obsolete ioctl(SNDCTL_FM_LOAD_INSTR) used. "
240 "Fix the program.\n");
241 return -EINVAL;
242
243 case SNDCTL_SYNTH_MEMAVL:
244 return 0x7fffffff;
245
246 case SNDCTL_FM_4OP_ENABLE:
247
248 return 0;
249
250 default:
251 return -EINVAL;
252 }
253 return 0;
254}
255
256
257static int snd_opl3_reset_seq_oss(struct snd_seq_oss_arg *arg)
258{
259 if (snd_BUG_ON(!arg))
260 return -ENXIO;
261
262 return 0;
263}
264
