Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * GF1 (GUS) Patch - Instrument routines |
| 3 | * Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #include <sound/driver.h> |
| 22 | #include <linux/init.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include <linux/slab.h> |
| 24 | #include <sound/core.h> |
| 25 | #include <sound/ainstr_gf1.h> |
| 26 | #include <sound/initval.h> |
| 27 | #include <asm/uaccess.h> |
| 28 | |
| 29 | MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); |
| 30 | MODULE_DESCRIPTION("Advanced Linux Sound Architecture GF1 (GUS) Patch support."); |
| 31 | MODULE_LICENSE("GPL"); |
| 32 | |
| 33 | static unsigned int snd_seq_gf1_size(unsigned int size, unsigned int format) |
| 34 | { |
| 35 | unsigned int result = size; |
| 36 | |
| 37 | if (format & GF1_WAVE_16BIT) |
| 38 | result <<= 1; |
| 39 | if (format & GF1_WAVE_STEREO) |
| 40 | result <<= 1; |
| 41 | return format; |
| 42 | } |
| 43 | |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 44 | static int snd_seq_gf1_copy_wave_from_stream(struct snd_gf1_ops *ops, |
| 45 | struct gf1_instrument *ip, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | char __user **data, |
| 47 | long *len, |
| 48 | int atomic) |
| 49 | { |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 50 | struct gf1_wave *wp, *prev; |
| 51 | struct gf1_xwave xp; |
Victor Fusco | 5a0f217 | 2005-07-26 13:42:31 +0200 | [diff] [blame] | 52 | int err; |
Al Viro | 1ef64e6 | 2005-10-21 03:22:18 -0400 | [diff] [blame] | 53 | gfp_t gfp_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | unsigned int real_size; |
| 55 | |
| 56 | gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL; |
| 57 | if (*len < (long)sizeof(xp)) |
| 58 | return -EINVAL; |
| 59 | if (copy_from_user(&xp, *data, sizeof(xp))) |
| 60 | return -EFAULT; |
| 61 | *data += sizeof(xp); |
| 62 | *len -= sizeof(xp); |
Takashi Iwai | ecca82b | 2005-09-09 14:20:49 +0200 | [diff] [blame] | 63 | wp = kzalloc(sizeof(*wp), gfp_mask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | if (wp == NULL) |
| 65 | return -ENOMEM; |
| 66 | wp->share_id[0] = le32_to_cpu(xp.share_id[0]); |
| 67 | wp->share_id[1] = le32_to_cpu(xp.share_id[1]); |
| 68 | wp->share_id[2] = le32_to_cpu(xp.share_id[2]); |
| 69 | wp->share_id[3] = le32_to_cpu(xp.share_id[3]); |
| 70 | wp->format = le32_to_cpu(xp.format); |
| 71 | wp->size = le32_to_cpu(xp.size); |
| 72 | wp->start = le32_to_cpu(xp.start); |
| 73 | wp->loop_start = le32_to_cpu(xp.loop_start); |
| 74 | wp->loop_end = le32_to_cpu(xp.loop_end); |
| 75 | wp->loop_repeat = le16_to_cpu(xp.loop_repeat); |
| 76 | wp->flags = xp.flags; |
| 77 | wp->sample_rate = le32_to_cpu(xp.sample_rate); |
| 78 | wp->low_frequency = le32_to_cpu(xp.low_frequency); |
| 79 | wp->high_frequency = le32_to_cpu(xp.high_frequency); |
| 80 | wp->root_frequency = le32_to_cpu(xp.root_frequency); |
| 81 | wp->tune = le16_to_cpu(xp.tune); |
| 82 | wp->balance = xp.balance; |
| 83 | memcpy(wp->envelope_rate, xp.envelope_rate, 6); |
| 84 | memcpy(wp->envelope_offset, xp.envelope_offset, 6); |
| 85 | wp->tremolo_sweep = xp.tremolo_sweep; |
| 86 | wp->tremolo_rate = xp.tremolo_rate; |
| 87 | wp->tremolo_depth = xp.tremolo_depth; |
| 88 | wp->vibrato_sweep = xp.vibrato_sweep; |
| 89 | wp->vibrato_rate = xp.vibrato_rate; |
| 90 | wp->vibrato_depth = xp.vibrato_depth; |
| 91 | wp->scale_frequency = le16_to_cpu(xp.scale_frequency); |
| 92 | wp->scale_factor = le16_to_cpu(xp.scale_factor); |
| 93 | real_size = snd_seq_gf1_size(wp->size, wp->format); |
| 94 | if ((long)real_size > *len) { |
| 95 | kfree(wp); |
| 96 | return -ENOMEM; |
| 97 | } |
| 98 | if (ops->put_sample) { |
| 99 | err = ops->put_sample(ops->private_data, wp, |
| 100 | *data, real_size, atomic); |
| 101 | if (err < 0) { |
| 102 | kfree(wp); |
| 103 | return err; |
| 104 | } |
| 105 | } |
| 106 | *data += real_size; |
| 107 | *len -= real_size; |
| 108 | prev = ip->wave; |
| 109 | if (prev) { |
| 110 | while (prev->next) prev = prev->next; |
| 111 | prev->next = wp; |
| 112 | } else { |
| 113 | ip->wave = wp; |
| 114 | } |
| 115 | return 0; |
| 116 | } |
| 117 | |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 118 | static void snd_seq_gf1_wave_free(struct snd_gf1_ops *ops, |
| 119 | struct gf1_wave *wave, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | int atomic) |
| 121 | { |
| 122 | if (ops->remove_sample) |
| 123 | ops->remove_sample(ops->private_data, wave, atomic); |
| 124 | kfree(wave); |
| 125 | } |
| 126 | |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 127 | static void snd_seq_gf1_instr_free(struct snd_gf1_ops *ops, |
| 128 | struct gf1_instrument *ip, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | int atomic) |
| 130 | { |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 131 | struct gf1_wave *wave; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | |
| 133 | while ((wave = ip->wave) != NULL) { |
| 134 | ip->wave = wave->next; |
| 135 | snd_seq_gf1_wave_free(ops, wave, atomic); |
| 136 | } |
| 137 | } |
| 138 | |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 139 | static int snd_seq_gf1_put(void *private_data, struct snd_seq_kinstr *instr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | char __user *instr_data, long len, int atomic, |
| 141 | int cmd) |
| 142 | { |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 143 | struct snd_gf1_ops *ops = private_data; |
| 144 | struct gf1_instrument *ip; |
| 145 | struct gf1_xinstrument ix; |
Al Viro | 1ef64e6 | 2005-10-21 03:22:18 -0400 | [diff] [blame] | 146 | int err; |
| 147 | gfp_t gfp_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | |
| 149 | if (cmd != SNDRV_SEQ_INSTR_PUT_CMD_CREATE) |
| 150 | return -EINVAL; |
| 151 | gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL; |
| 152 | /* copy instrument data */ |
| 153 | if (len < (long)sizeof(ix)) |
| 154 | return -EINVAL; |
| 155 | if (copy_from_user(&ix, instr_data, sizeof(ix))) |
| 156 | return -EFAULT; |
| 157 | if (ix.stype != GF1_STRU_INSTR) |
| 158 | return -EINVAL; |
| 159 | instr_data += sizeof(ix); |
| 160 | len -= sizeof(ix); |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 161 | ip = (struct gf1_instrument *)KINSTR_DATA(instr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | ip->exclusion = le16_to_cpu(ix.exclusion); |
| 163 | ip->exclusion_group = le16_to_cpu(ix.exclusion_group); |
| 164 | ip->effect1 = ix.effect1; |
| 165 | ip->effect1_depth = ix.effect1_depth; |
| 166 | ip->effect2 = ix.effect2; |
| 167 | ip->effect2_depth = ix.effect2_depth; |
| 168 | /* copy layers */ |
| 169 | while (len > (long)sizeof(__u32)) { |
| 170 | __u32 stype; |
| 171 | |
| 172 | if (copy_from_user(&stype, instr_data, sizeof(stype))) |
| 173 | return -EFAULT; |
| 174 | if (stype != GF1_STRU_WAVE) { |
| 175 | snd_seq_gf1_instr_free(ops, ip, atomic); |
| 176 | return -EINVAL; |
| 177 | } |
| 178 | err = snd_seq_gf1_copy_wave_from_stream(ops, |
| 179 | ip, |
| 180 | &instr_data, |
| 181 | &len, |
| 182 | atomic); |
| 183 | if (err < 0) { |
| 184 | snd_seq_gf1_instr_free(ops, ip, atomic); |
| 185 | return err; |
| 186 | } |
| 187 | } |
| 188 | return 0; |
| 189 | } |
| 190 | |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 191 | static int snd_seq_gf1_copy_wave_to_stream(struct snd_gf1_ops *ops, |
| 192 | struct gf1_instrument *ip, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | char __user **data, |
| 194 | long *len, |
| 195 | int atomic) |
| 196 | { |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 197 | struct gf1_wave *wp; |
| 198 | struct gf1_xwave xp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | int err; |
| 200 | unsigned int real_size; |
| 201 | |
| 202 | for (wp = ip->wave; wp; wp = wp->next) { |
| 203 | if (*len < (long)sizeof(xp)) |
| 204 | return -ENOMEM; |
| 205 | memset(&xp, 0, sizeof(xp)); |
| 206 | xp.stype = GF1_STRU_WAVE; |
| 207 | xp.share_id[0] = cpu_to_le32(wp->share_id[0]); |
| 208 | xp.share_id[1] = cpu_to_le32(wp->share_id[1]); |
| 209 | xp.share_id[2] = cpu_to_le32(wp->share_id[2]); |
| 210 | xp.share_id[3] = cpu_to_le32(wp->share_id[3]); |
| 211 | xp.format = cpu_to_le32(wp->format); |
| 212 | xp.size = cpu_to_le32(wp->size); |
| 213 | xp.start = cpu_to_le32(wp->start); |
| 214 | xp.loop_start = cpu_to_le32(wp->loop_start); |
| 215 | xp.loop_end = cpu_to_le32(wp->loop_end); |
| 216 | xp.loop_repeat = cpu_to_le32(wp->loop_repeat); |
| 217 | xp.flags = wp->flags; |
| 218 | xp.sample_rate = cpu_to_le32(wp->sample_rate); |
| 219 | xp.low_frequency = cpu_to_le32(wp->low_frequency); |
| 220 | xp.high_frequency = cpu_to_le32(wp->high_frequency); |
| 221 | xp.root_frequency = cpu_to_le32(wp->root_frequency); |
| 222 | xp.tune = cpu_to_le16(wp->tune); |
| 223 | xp.balance = wp->balance; |
| 224 | memcpy(xp.envelope_rate, wp->envelope_rate, 6); |
| 225 | memcpy(xp.envelope_offset, wp->envelope_offset, 6); |
| 226 | xp.tremolo_sweep = wp->tremolo_sweep; |
| 227 | xp.tremolo_rate = wp->tremolo_rate; |
| 228 | xp.tremolo_depth = wp->tremolo_depth; |
| 229 | xp.vibrato_sweep = wp->vibrato_sweep; |
| 230 | xp.vibrato_rate = wp->vibrato_rate; |
| 231 | xp.vibrato_depth = wp->vibrato_depth; |
| 232 | xp.scale_frequency = cpu_to_le16(wp->scale_frequency); |
| 233 | xp.scale_factor = cpu_to_le16(wp->scale_factor); |
| 234 | if (copy_to_user(*data, &xp, sizeof(xp))) |
| 235 | return -EFAULT; |
| 236 | *data += sizeof(xp); |
| 237 | *len -= sizeof(xp); |
| 238 | real_size = snd_seq_gf1_size(wp->size, wp->format); |
| 239 | if (*len < (long)real_size) |
| 240 | return -ENOMEM; |
| 241 | if (ops->get_sample) { |
| 242 | err = ops->get_sample(ops->private_data, wp, |
| 243 | *data, real_size, atomic); |
| 244 | if (err < 0) |
| 245 | return err; |
| 246 | } |
| 247 | *data += wp->size; |
| 248 | *len -= wp->size; |
| 249 | } |
| 250 | return 0; |
| 251 | } |
| 252 | |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 253 | static int snd_seq_gf1_get(void *private_data, struct snd_seq_kinstr *instr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | char __user *instr_data, long len, int atomic, |
| 255 | int cmd) |
| 256 | { |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 257 | struct snd_gf1_ops *ops = private_data; |
| 258 | struct gf1_instrument *ip; |
| 259 | struct gf1_xinstrument ix; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
| 261 | if (cmd != SNDRV_SEQ_INSTR_GET_CMD_FULL) |
| 262 | return -EINVAL; |
| 263 | if (len < (long)sizeof(ix)) |
| 264 | return -ENOMEM; |
| 265 | memset(&ix, 0, sizeof(ix)); |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 266 | ip = (struct gf1_instrument *)KINSTR_DATA(instr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | ix.stype = GF1_STRU_INSTR; |
| 268 | ix.exclusion = cpu_to_le16(ip->exclusion); |
| 269 | ix.exclusion_group = cpu_to_le16(ip->exclusion_group); |
| 270 | ix.effect1 = cpu_to_le16(ip->effect1); |
| 271 | ix.effect1_depth = cpu_to_le16(ip->effect1_depth); |
| 272 | ix.effect2 = ip->effect2; |
| 273 | ix.effect2_depth = ip->effect2_depth; |
| 274 | if (copy_to_user(instr_data, &ix, sizeof(ix))) |
| 275 | return -EFAULT; |
| 276 | instr_data += sizeof(ix); |
| 277 | len -= sizeof(ix); |
| 278 | return snd_seq_gf1_copy_wave_to_stream(ops, |
| 279 | ip, |
| 280 | &instr_data, |
| 281 | &len, |
| 282 | atomic); |
| 283 | } |
| 284 | |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 285 | static int snd_seq_gf1_get_size(void *private_data, struct snd_seq_kinstr *instr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | long *size) |
| 287 | { |
| 288 | long result; |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 289 | struct gf1_instrument *ip; |
| 290 | struct gf1_wave *wp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | |
| 292 | *size = 0; |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 293 | ip = (struct gf1_instrument *)KINSTR_DATA(instr); |
| 294 | result = sizeof(struct gf1_xinstrument); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | for (wp = ip->wave; wp; wp = wp->next) { |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 296 | result += sizeof(struct gf1_xwave); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | result += wp->size; |
| 298 | } |
| 299 | *size = result; |
| 300 | return 0; |
| 301 | } |
| 302 | |
| 303 | static int snd_seq_gf1_remove(void *private_data, |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 304 | struct snd_seq_kinstr *instr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | int atomic) |
| 306 | { |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 307 | struct snd_gf1_ops *ops = private_data; |
| 308 | struct gf1_instrument *ip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 310 | ip = (struct gf1_instrument *)KINSTR_DATA(instr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | snd_seq_gf1_instr_free(ops, ip, atomic); |
| 312 | return 0; |
| 313 | } |
| 314 | |
| 315 | static void snd_seq_gf1_notify(void *private_data, |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 316 | struct snd_seq_kinstr *instr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | int what) |
| 318 | { |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 319 | struct snd_gf1_ops *ops = private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | |
| 321 | if (ops->notify) |
| 322 | ops->notify(ops->private_data, instr, what); |
| 323 | } |
| 324 | |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 325 | int snd_seq_gf1_init(struct snd_gf1_ops *ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | void *private_data, |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 327 | struct snd_seq_kinstr_ops *next) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | { |
| 329 | memset(ops, 0, sizeof(*ops)); |
| 330 | ops->private_data = private_data; |
| 331 | ops->kops.private_data = ops; |
Takashi Iwai | 19ac31e | 2005-11-17 14:04:44 +0100 | [diff] [blame] | 332 | ops->kops.add_len = sizeof(struct gf1_instrument); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | ops->kops.instr_type = SNDRV_SEQ_INSTR_ID_GUS_PATCH; |
| 334 | ops->kops.put = snd_seq_gf1_put; |
| 335 | ops->kops.get = snd_seq_gf1_get; |
| 336 | ops->kops.get_size = snd_seq_gf1_get_size; |
| 337 | ops->kops.remove = snd_seq_gf1_remove; |
| 338 | ops->kops.notify = snd_seq_gf1_notify; |
| 339 | ops->kops.next = next; |
| 340 | return 0; |
| 341 | } |
| 342 | |
| 343 | /* |
| 344 | * Init part |
| 345 | */ |
| 346 | |
| 347 | static int __init alsa_ainstr_gf1_init(void) |
| 348 | { |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | static void __exit alsa_ainstr_gf1_exit(void) |
| 353 | { |
| 354 | } |
| 355 | |
| 356 | module_init(alsa_ainstr_gf1_init) |
| 357 | module_exit(alsa_ainstr_gf1_exit) |
| 358 | |
| 359 | EXPORT_SYMBOL(snd_seq_gf1_init); |