1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22#include <linux/slab.h>
23#include <linux/string.h>
24#include <sound/core.h>
25#include <sound/gus.h>
26#include <sound/info.h>
27
28#ifdef CONFIG_SND_DEBUG
29static void snd_gf1_mem_info_read(struct snd_info_entry *entry,
30 struct snd_info_buffer *buffer);
31#endif
32
33void snd_gf1_mem_lock(struct snd_gf1_mem * alloc, int xup)
34{
35 if (!xup) {
36 mutex_lock(&alloc->memory_mutex);
37 } else {
38 mutex_unlock(&alloc->memory_mutex);
39 }
40}
41
42static struct snd_gf1_mem_block *snd_gf1_mem_xalloc(struct snd_gf1_mem * alloc,
43 struct snd_gf1_mem_block * block)
44{
45 struct snd_gf1_mem_block *pblock, *nblock;
46
47 nblock = kmalloc(sizeof(struct snd_gf1_mem_block), GFP_KERNEL);
48 if (nblock == NULL)
49 return NULL;
50 *nblock = *block;
51 pblock = alloc->first;
52 while (pblock) {
53 if (pblock->ptr > nblock->ptr) {
54 nblock->prev = pblock->prev;
55 nblock->next = pblock;
56 pblock->prev = nblock;
57 if (pblock == alloc->first)
58 alloc->first = nblock;
59 else
60 nblock->prev->next = nblock;
61 mutex_unlock(&alloc->memory_mutex);
62 return NULL;
63 }
64 pblock = pblock->next;
65 }
66 nblock->next = NULL;
67 if (alloc->last == NULL) {
68 nblock->prev = NULL;
69 alloc->first = alloc->last = nblock;
70 } else {
71 nblock->prev = alloc->last;
72 alloc->last->next = nblock;
73 alloc->last = nblock;
74 }
75 return nblock;
76}
77
78int snd_gf1_mem_xfree(struct snd_gf1_mem * alloc, struct snd_gf1_mem_block * block)
79{
80 if (block->share) {
81 block->share--;
82 mutex_unlock(&alloc->memory_mutex);
83 return 0;
84 }
85 if (alloc->first == block) {
86 alloc->first = block->next;
87 if (block->next)
88 block->next->prev = NULL;
89 } else {
90 block->prev->next = block->next;
91 if (block->next)
92 block->next->prev = block->prev;
93 }
94 if (alloc->last == block) {
95 alloc->last = block->prev;
96 if (block->prev)
97 block->prev->next = NULL;
98 } else {
99 block->next->prev = block->prev;
100 if (block->prev)
101 block->prev->next = block->next;
102 }
103 kfree(block->name);
104 kfree(block);
105 return 0;
106}
107
108static struct snd_gf1_mem_block *snd_gf1_mem_look(struct snd_gf1_mem * alloc,
109 unsigned int address)
110{
111 struct snd_gf1_mem_block *block;
112
113 for (block = alloc->first; block; block = block->next) {
114 if (block->ptr == address) {
115 return block;
116 }
117 }
118 return NULL;
119}
120
121static struct snd_gf1_mem_block *snd_gf1_mem_share(struct snd_gf1_mem * alloc,
122 unsigned int *share_id)
123{
124 struct snd_gf1_mem_block *block;
125
126 if (!share_id[0] && !share_id[1] &&
127 !share_id[2] && !share_id[3])
128 return NULL;
129 for (block = alloc->first; block; block = block->next)
130 if (!memcmp(share_id, block->share_id,
131 sizeof(block->share_id)))
132 return block;
133 return NULL;
134}
135
136static int snd_gf1_mem_find(struct snd_gf1_mem * alloc,
137 struct snd_gf1_mem_block * block,
138 unsigned int size, int w_16, int align)
139{
140 struct snd_gf1_bank_info *info = w_16 ? alloc->banks_16 : alloc->banks_8;
141 unsigned int idx, boundary;
142 int size1;
143 struct snd_gf1_mem_block *pblock;
144 unsigned int ptr1, ptr2;
145
146 if (w_16 && align < 2)
147 align = 2;
148 block->flags = w_16 ? SNDRV_GF1_MEM_BLOCK_16BIT : 0;
149 block->owner = SNDRV_GF1_MEM_OWNER_DRIVER;
150 block->share = 0;
151 block->share_id[0] = block->share_id[1] =
152 block->share_id[2] = block->share_id[3] = 0;
153 block->name = NULL;
154 block->prev = block->next = NULL;
155 for (pblock = alloc->first, idx = 0; pblock; pblock = pblock->next) {
156 while (pblock->ptr >= (boundary = info[idx].address + info[idx].size))
157 idx++;
158 while (pblock->ptr + pblock->size >= (boundary = info[idx].address + info[idx].size))
159 idx++;
160 ptr2 = boundary;
161 if (pblock->next) {
162 if (pblock->ptr + pblock->size == pblock->next->ptr)
163 continue;
164 if (pblock->next->ptr < boundary)
165 ptr2 = pblock->next->ptr;
166 }
167 ptr1 = ALIGN(pblock->ptr + pblock->size, align);
168 if (ptr1 >= ptr2)
169 continue;
170 size1 = ptr2 - ptr1;
171 if ((int)size <= size1) {
172 block->ptr = ptr1;
173 block->size = size;
174 return 0;
175 }
176 }
177 while (++idx < 4) {
178 if (size <= info[idx].size) {
179
180 block->ptr = info[idx].address;
181 block->size = size;
182 return 0;
183 }
184 }
185 return -ENOMEM;
186}
187
188struct snd_gf1_mem_block *snd_gf1_mem_alloc(struct snd_gf1_mem * alloc, int owner,
189 char *name, int size, int w_16, int align,
190 unsigned int *share_id)
191{
192 struct snd_gf1_mem_block block, *nblock;
193
194 snd_gf1_mem_lock(alloc, 0);
195 if (share_id != NULL) {
196 nblock = snd_gf1_mem_share(alloc, share_id);
197 if (nblock != NULL) {
198 if (size != (int)nblock->size) {
199
200 snd_printk(KERN_ERR "snd_gf1_mem_alloc - share: sizes differ\n");
201 goto __std;
202 }
203 nblock->share++;
204 snd_gf1_mem_lock(alloc, 1);
205 return NULL;
206 }
207 }
208 __std:
209 if (snd_gf1_mem_find(alloc, &block, size, w_16, align) < 0) {
210 snd_gf1_mem_lock(alloc, 1);
211 return NULL;
212 }
213 if (share_id != NULL)
214 memcpy(&block.share_id, share_id, sizeof(block.share_id));
215 block.owner = owner;
216 block.name = kstrdup(name, GFP_KERNEL);
217 nblock = snd_gf1_mem_xalloc(alloc, &block);
218 snd_gf1_mem_lock(alloc, 1);
219 return nblock;
220}
221
222int snd_gf1_mem_free(struct snd_gf1_mem * alloc, unsigned int address)
223{
224 int result;
225 struct snd_gf1_mem_block *block;
226
227 snd_gf1_mem_lock(alloc, 0);
228 if ((block = snd_gf1_mem_look(alloc, address)) != NULL) {
229 result = snd_gf1_mem_xfree(alloc, block);
230 snd_gf1_mem_lock(alloc, 1);
231 return result;
232 }
233 snd_gf1_mem_lock(alloc, 1);
234 return -EINVAL;
235}
236
237int snd_gf1_mem_init(struct snd_gus_card * gus)
238{
239 struct snd_gf1_mem *alloc;
240 struct snd_gf1_mem_block block;
241#ifdef CONFIG_SND_DEBUG
242 struct snd_info_entry *entry;
243#endif
244
245 alloc = &gus->gf1.mem_alloc;
246 mutex_init(&alloc->memory_mutex);
247 alloc->first = alloc->last = NULL;
248 if (!gus->gf1.memory)
249 return 0;
250
251 memset(&block, 0, sizeof(block));
252 block.owner = SNDRV_GF1_MEM_OWNER_DRIVER;
253 if (gus->gf1.enh_mode) {
254 block.ptr = 0;
255 block.size = 1024;
256 block.name = kstrdup("InterWave LFOs", GFP_KERNEL);
257 if (snd_gf1_mem_xalloc(alloc, &block) == NULL)
258 return -ENOMEM;
259 }
260 block.ptr = gus->gf1.default_voice_address;
261 block.size = 4;
262 block.name = kstrdup("Voice default (NULL's)", GFP_KERNEL);
263 if (snd_gf1_mem_xalloc(alloc, &block) == NULL)
264 return -ENOMEM;
265#ifdef CONFIG_SND_DEBUG
266 if (! snd_card_proc_new(gus->card, "gusmem", &entry))
267 snd_info_set_text_ops(entry, gus, snd_gf1_mem_info_read);
268#endif
269 return 0;
270}
271
272int snd_gf1_mem_done(struct snd_gus_card * gus)
273{
274 struct snd_gf1_mem *alloc;
275 struct snd_gf1_mem_block *block, *nblock;
276
277 alloc = &gus->gf1.mem_alloc;
278 block = alloc->first;
279 while (block) {
280 nblock = block->next;
281 snd_gf1_mem_xfree(alloc, block);
282 block = nblock;
283 }
284 return 0;
285}
286
287#ifdef CONFIG_SND_DEBUG
288static void snd_gf1_mem_info_read(struct snd_info_entry *entry,
289 struct snd_info_buffer *buffer)
290{
291 struct snd_gus_card *gus;
292 struct snd_gf1_mem *alloc;
293 struct snd_gf1_mem_block *block;
294 unsigned int total, used;
295 int i;
296
297 gus = entry->private_data;
298 alloc = &gus->gf1.mem_alloc;
299 mutex_lock(&alloc->memory_mutex);
300 snd_iprintf(buffer, "8-bit banks : \n ");
301 for (i = 0; i < 4; i++)
302 snd_iprintf(buffer, "0x%06x (%04ik)%s", alloc->banks_8[i].address, alloc->banks_8[i].size >> 10, i + 1 < 4 ? "," : "");
303 snd_iprintf(buffer, "\n"
304 "16-bit banks : \n ");
305 for (i = total = 0; i < 4; i++) {
306 snd_iprintf(buffer, "0x%06x (%04ik)%s", alloc->banks_16[i].address, alloc->banks_16[i].size >> 10, i + 1 < 4 ? "," : "");
307 total += alloc->banks_16[i].size;
308 }
309 snd_iprintf(buffer, "\n");
310 used = 0;
311 for (block = alloc->first, i = 0; block; block = block->next, i++) {
312 used += block->size;
313 snd_iprintf(buffer, "Block %i at 0x%lx onboard 0x%x size %i (0x%x):\n", i, (long) block, block->ptr, block->size, block->size);
314 if (block->share ||
315 block->share_id[0] || block->share_id[1] ||
316 block->share_id[2] || block->share_id[3])
317 snd_iprintf(buffer, " Share : %i [id0 0x%x] [id1 0x%x] [id2 0x%x] [id3 0x%x]\n",
318 block->share,
319 block->share_id[0], block->share_id[1],
320 block->share_id[2], block->share_id[3]);
321 snd_iprintf(buffer, " Flags :%s\n",
322 block->flags & SNDRV_GF1_MEM_BLOCK_16BIT ? " 16-bit" : "");
323 snd_iprintf(buffer, " Owner : ");
324 switch (block->owner) {
325 case SNDRV_GF1_MEM_OWNER_DRIVER:
326 snd_iprintf(buffer, "driver - %s\n", block->name);
327 break;
328 case SNDRV_GF1_MEM_OWNER_WAVE_SIMPLE:
329 snd_iprintf(buffer, "SIMPLE wave\n");
330 break;
331 case SNDRV_GF1_MEM_OWNER_WAVE_GF1:
332 snd_iprintf(buffer, "GF1 wave\n");
333 break;
334 case SNDRV_GF1_MEM_OWNER_WAVE_IWFFFF:
335 snd_iprintf(buffer, "IWFFFF wave\n");
336 break;
337 default:
338 snd_iprintf(buffer, "unknown\n");
339 }
340 }
341 snd_iprintf(buffer, " Total: memory = %i, used = %i, free = %i\n",
342 total, used, total - used);
343 mutex_unlock(&alloc->memory_mutex);
344#if 0
345 ultra_iprintf(buffer, " Verify: free = %i, max 8-bit block = %i, max 16-bit block = %i\n",
346 ultra_memory_free_size(card, &card->gf1.mem_alloc),
347 ultra_memory_free_block(card, &card->gf1.mem_alloc, 0),
348 ultra_memory_free_block(card, &card->gf1.mem_alloc, 1));
349#endif
350}
351#endif
352
