1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
4 * and (c) 1999 Steve Ratcliffe <steve@parabola.demon.co.uk>
5 * Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de>
6 *
7 * Routines for control of EMU8000 chip
8 */
9
10 #include <linux/wait.h>
11 #include <linux/sched/signal.h>
12 #include <linux/slab.h>
13 #include <linux/ioport.h>
14 #include <linux/export.h>
15 #include <linux/delay.h>
16 #include <linux/io.h>
17 #include <sound/core.h>
18 #include <sound/emu8000.h>
19 #include <sound/emu8000_reg.h>
20 #include <linux/uaccess.h>
21 #include <linux/init.h>
22 #include <sound/control.h>
23 #include <sound/initval.h>
24
25 /*
26 * emu8000 register controls
27 */
28
29 /*
30 * The following routines read and write registers on the emu8000. They
31 * should always be called via the EMU8000*READ/WRITE macros and never
32 * directly. The macros handle the port number and command word.
33 */
34 /* Write a word */
snd_emu8000_poke(struct snd_emu8000 * emu,unsigned int port,unsigned int reg,unsigned int val)35 void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, unsigned int val)
36 {
37 unsigned long flags;
38 spin_lock_irqsave(&emu->reg_lock, flags);
39 if (reg != emu->last_reg) {
40 outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */
41 emu->last_reg = reg;
42 }
43 outw((unsigned short)val, port); /* Send data */
44 spin_unlock_irqrestore(&emu->reg_lock, flags);
45 }
46
47 /* Read a word */
snd_emu8000_peek(struct snd_emu8000 * emu,unsigned int port,unsigned int reg)48 unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port, unsigned int reg)
49 {
50 unsigned short res;
51 unsigned long flags;
52 spin_lock_irqsave(&emu->reg_lock, flags);
53 if (reg != emu->last_reg) {
54 outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */
55 emu->last_reg = reg;
56 }
57 res = inw(port); /* Read data */
58 spin_unlock_irqrestore(&emu->reg_lock, flags);
59 return res;
60 }
61
62 /* Write a double word */
snd_emu8000_poke_dw(struct snd_emu8000 * emu,unsigned int port,unsigned int reg,unsigned int val)63 void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, unsigned int val)
64 {
65 unsigned long flags;
66 spin_lock_irqsave(&emu->reg_lock, flags);
67 if (reg != emu->last_reg) {
68 outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */
69 emu->last_reg = reg;
70 }
71 outw((unsigned short)val, port); /* Send low word of data */
72 outw((unsigned short)(val>>16), port+2); /* Send high word of data */
73 spin_unlock_irqrestore(&emu->reg_lock, flags);
74 }
75
76 /* Read a double word */
snd_emu8000_peek_dw(struct snd_emu8000 * emu,unsigned int port,unsigned int reg)77 unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg)
78 {
79 unsigned short low;
80 unsigned int res;
81 unsigned long flags;
82 spin_lock_irqsave(&emu->reg_lock, flags);
83 if (reg != emu->last_reg) {
84 outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */
85 emu->last_reg = reg;
86 }
87 low = inw(port); /* Read low word of data */
88 res = low + (inw(port+2) << 16);
89 spin_unlock_irqrestore(&emu->reg_lock, flags);
90 return res;
91 }
92
93 /*
94 * Set up / close a channel to be used for DMA.
95 */
96 /*exported*/ void
snd_emu8000_dma_chan(struct snd_emu8000 * emu,int ch,int mode)97 snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode)
98 {
99 unsigned right_bit = (mode & EMU8000_RAM_RIGHT) ? 0x01000000 : 0;
100 mode &= EMU8000_RAM_MODE_MASK;
101 if (mode == EMU8000_RAM_CLOSE) {
102 EMU8000_CCCA_WRITE(emu, ch, 0);
103 EMU8000_DCYSUSV_WRITE(emu, ch, 0x807F);
104 return;
105 }
106 EMU8000_DCYSUSV_WRITE(emu, ch, 0x80);
107 EMU8000_VTFT_WRITE(emu, ch, 0);
108 EMU8000_CVCF_WRITE(emu, ch, 0);
109 EMU8000_PTRX_WRITE(emu, ch, 0x40000000);
110 EMU8000_CPF_WRITE(emu, ch, 0x40000000);
111 EMU8000_PSST_WRITE(emu, ch, 0);
112 EMU8000_CSL_WRITE(emu, ch, 0);
113 if (mode == EMU8000_RAM_WRITE) /* DMA write */
114 EMU8000_CCCA_WRITE(emu, ch, 0x06000000 | right_bit);
115 else /* DMA read */
116 EMU8000_CCCA_WRITE(emu, ch, 0x04000000 | right_bit);
117 }
118
119 /*
120 */
121 static void
snd_emu8000_read_wait(struct snd_emu8000 * emu)122 snd_emu8000_read_wait(struct snd_emu8000 *emu)
123 {
124 while ((EMU8000_SMALR_READ(emu) & 0x80000000) != 0) {
125 schedule_timeout_interruptible(1);
126 if (signal_pending(current))
127 break;
128 }
129 }
130
131 /*
132 */
133 static void
snd_emu8000_write_wait(struct snd_emu8000 * emu)134 snd_emu8000_write_wait(struct snd_emu8000 *emu)
135 {
136 while ((EMU8000_SMALW_READ(emu) & 0x80000000) != 0) {
137 schedule_timeout_interruptible(1);
138 if (signal_pending(current))
139 break;
140 }
141 }
142
143 /*
144 * detect a card at the given port
145 */
146 static int
snd_emu8000_detect(struct snd_emu8000 * emu)147 snd_emu8000_detect(struct snd_emu8000 *emu)
148 {
149 /* Initialise */
150 EMU8000_HWCF1_WRITE(emu, 0x0059);
151 EMU8000_HWCF2_WRITE(emu, 0x0020);
152 EMU8000_HWCF3_WRITE(emu, 0x0000);
153 /* Check for a recognisable emu8000 */
154 /*
155 if ((EMU8000_U1_READ(emu) & 0x000f) != 0x000c)
156 return -ENODEV;
157 */
158 if ((EMU8000_HWCF1_READ(emu) & 0x007e) != 0x0058)
159 return -ENODEV;
160 if ((EMU8000_HWCF2_READ(emu) & 0x0003) != 0x0003)
161 return -ENODEV;
162
163 snd_printdd("EMU8000 [0x%lx]: Synth chip found\n",
164 emu->port1);
165 return 0;
166 }
167
168
169 /*
170 * intiailize audio channels
171 */
172 static void
init_audio(struct snd_emu8000 * emu)173 init_audio(struct snd_emu8000 *emu)
174 {
175 int ch;
176
177 /* turn off envelope engines */
178 for (ch = 0; ch < EMU8000_CHANNELS; ch++)
179 EMU8000_DCYSUSV_WRITE(emu, ch, 0x80);
180
181 /* reset all other parameters to zero */
182 for (ch = 0; ch < EMU8000_CHANNELS; ch++) {
183 EMU8000_ENVVOL_WRITE(emu, ch, 0);
184 EMU8000_ENVVAL_WRITE(emu, ch, 0);
185 EMU8000_DCYSUS_WRITE(emu, ch, 0);
186 EMU8000_ATKHLDV_WRITE(emu, ch, 0);
187 EMU8000_LFO1VAL_WRITE(emu, ch, 0);
188 EMU8000_ATKHLD_WRITE(emu, ch, 0);
189 EMU8000_LFO2VAL_WRITE(emu, ch, 0);
190 EMU8000_IP_WRITE(emu, ch, 0);
191 EMU8000_IFATN_WRITE(emu, ch, 0);
192 EMU8000_PEFE_WRITE(emu, ch, 0);
193 EMU8000_FMMOD_WRITE(emu, ch, 0);
194 EMU8000_TREMFRQ_WRITE(emu, ch, 0);
195 EMU8000_FM2FRQ2_WRITE(emu, ch, 0);
196 EMU8000_PTRX_WRITE(emu, ch, 0);
197 EMU8000_VTFT_WRITE(emu, ch, 0);
198 EMU8000_PSST_WRITE(emu, ch, 0);
199 EMU8000_CSL_WRITE(emu, ch, 0);
200 EMU8000_CCCA_WRITE(emu, ch, 0);
201 }
202
203 for (ch = 0; ch < EMU8000_CHANNELS; ch++) {
204 EMU8000_CPF_WRITE(emu, ch, 0);
205 EMU8000_CVCF_WRITE(emu, ch, 0);
206 }
207 }
208
209
210 /*
211 * initialize DMA address
212 */
213 static void
init_dma(struct snd_emu8000 * emu)214 init_dma(struct snd_emu8000 *emu)
215 {
216 EMU8000_SMALR_WRITE(emu, 0);
217 EMU8000_SMARR_WRITE(emu, 0);
218 EMU8000_SMALW_WRITE(emu, 0);
219 EMU8000_SMARW_WRITE(emu, 0);
220 }
221
222 /*
223 * initialization arrays; from ADIP
224 */
225 static const unsigned short init1[128] = {
226 0x03ff, 0x0030, 0x07ff, 0x0130, 0x0bff, 0x0230, 0x0fff, 0x0330,
227 0x13ff, 0x0430, 0x17ff, 0x0530, 0x1bff, 0x0630, 0x1fff, 0x0730,
228 0x23ff, 0x0830, 0x27ff, 0x0930, 0x2bff, 0x0a30, 0x2fff, 0x0b30,
229 0x33ff, 0x0c30, 0x37ff, 0x0d30, 0x3bff, 0x0e30, 0x3fff, 0x0f30,
230
231 0x43ff, 0x0030, 0x47ff, 0x0130, 0x4bff, 0x0230, 0x4fff, 0x0330,
232 0x53ff, 0x0430, 0x57ff, 0x0530, 0x5bff, 0x0630, 0x5fff, 0x0730,
233 0x63ff, 0x0830, 0x67ff, 0x0930, 0x6bff, 0x0a30, 0x6fff, 0x0b30,
234 0x73ff, 0x0c30, 0x77ff, 0x0d30, 0x7bff, 0x0e30, 0x7fff, 0x0f30,
235
236 0x83ff, 0x0030, 0x87ff, 0x0130, 0x8bff, 0x0230, 0x8fff, 0x0330,
237 0x93ff, 0x0430, 0x97ff, 0x0530, 0x9bff, 0x0630, 0x9fff, 0x0730,
238 0xa3ff, 0x0830, 0xa7ff, 0x0930, 0xabff, 0x0a30, 0xafff, 0x0b30,
239 0xb3ff, 0x0c30, 0xb7ff, 0x0d30, 0xbbff, 0x0e30, 0xbfff, 0x0f30,
240
241 0xc3ff, 0x0030, 0xc7ff, 0x0130, 0xcbff, 0x0230, 0xcfff, 0x0330,
242 0xd3ff, 0x0430, 0xd7ff, 0x0530, 0xdbff, 0x0630, 0xdfff, 0x0730,
243 0xe3ff, 0x0830, 0xe7ff, 0x0930, 0xebff, 0x0a30, 0xefff, 0x0b30,
244 0xf3ff, 0x0c30, 0xf7ff, 0x0d30, 0xfbff, 0x0e30, 0xffff, 0x0f30,
245 };
246
247 static const unsigned short init2[128] = {
248 0x03ff, 0x8030, 0x07ff, 0x8130, 0x0bff, 0x8230, 0x0fff, 0x8330,
249 0x13ff, 0x8430, 0x17ff, 0x8530, 0x1bff, 0x8630, 0x1fff, 0x8730,
250 0x23ff, 0x8830, 0x27ff, 0x8930, 0x2bff, 0x8a30, 0x2fff, 0x8b30,
251 0x33ff, 0x8c30, 0x37ff, 0x8d30, 0x3bff, 0x8e30, 0x3fff, 0x8f30,
252
253 0x43ff, 0x8030, 0x47ff, 0x8130, 0x4bff, 0x8230, 0x4fff, 0x8330,
254 0x53ff, 0x8430, 0x57ff, 0x8530, 0x5bff, 0x8630, 0x5fff, 0x8730,
255 0x63ff, 0x8830, 0x67ff, 0x8930, 0x6bff, 0x8a30, 0x6fff, 0x8b30,
256 0x73ff, 0x8c30, 0x77ff, 0x8d30, 0x7bff, 0x8e30, 0x7fff, 0x8f30,
257
258 0x83ff, 0x8030, 0x87ff, 0x8130, 0x8bff, 0x8230, 0x8fff, 0x8330,
259 0x93ff, 0x8430, 0x97ff, 0x8530, 0x9bff, 0x8630, 0x9fff, 0x8730,
260 0xa3ff, 0x8830, 0xa7ff, 0x8930, 0xabff, 0x8a30, 0xafff, 0x8b30,
261 0xb3ff, 0x8c30, 0xb7ff, 0x8d30, 0xbbff, 0x8e30, 0xbfff, 0x8f30,
262
263 0xc3ff, 0x8030, 0xc7ff, 0x8130, 0xcbff, 0x8230, 0xcfff, 0x8330,
264 0xd3ff, 0x8430, 0xd7ff, 0x8530, 0xdbff, 0x8630, 0xdfff, 0x8730,
265 0xe3ff, 0x8830, 0xe7ff, 0x8930, 0xebff, 0x8a30, 0xefff, 0x8b30,
266 0xf3ff, 0x8c30, 0xf7ff, 0x8d30, 0xfbff, 0x8e30, 0xffff, 0x8f30,
267 };
268
269 static const unsigned short init3[128] = {
270 0x0C10, 0x8470, 0x14FE, 0xB488, 0x167F, 0xA470, 0x18E7, 0x84B5,
271 0x1B6E, 0x842A, 0x1F1D, 0x852A, 0x0DA3, 0x8F7C, 0x167E, 0xF254,
272 0x0000, 0x842A, 0x0001, 0x852A, 0x18E6, 0x8BAA, 0x1B6D, 0xF234,
273 0x229F, 0x8429, 0x2746, 0x8529, 0x1F1C, 0x86E7, 0x229E, 0xF224,
274
275 0x0DA4, 0x8429, 0x2C29, 0x8529, 0x2745, 0x87F6, 0x2C28, 0xF254,
276 0x383B, 0x8428, 0x320F, 0x8528, 0x320E, 0x8F02, 0x1341, 0xF264,
277 0x3EB6, 0x8428, 0x3EB9, 0x8528, 0x383A, 0x8FA9, 0x3EB5, 0xF294,
278 0x3EB7, 0x8474, 0x3EBA, 0x8575, 0x3EB8, 0xC4C3, 0x3EBB, 0xC5C3,
279
280 0x0000, 0xA404, 0x0001, 0xA504, 0x141F, 0x8671, 0x14FD, 0x8287,
281 0x3EBC, 0xE610, 0x3EC8, 0x8C7B, 0x031A, 0x87E6, 0x3EC8, 0x86F7,
282 0x3EC0, 0x821E, 0x3EBE, 0xD208, 0x3EBD, 0x821F, 0x3ECA, 0x8386,
283 0x3EC1, 0x8C03, 0x3EC9, 0x831E, 0x3ECA, 0x8C4C, 0x3EBF, 0x8C55,
284
285 0x3EC9, 0xC208, 0x3EC4, 0xBC84, 0x3EC8, 0x8EAD, 0x3EC8, 0xD308,
286 0x3EC2, 0x8F7E, 0x3ECB, 0x8219, 0x3ECB, 0xD26E, 0x3EC5, 0x831F,
287 0x3EC6, 0xC308, 0x3EC3, 0xB2FF, 0x3EC9, 0x8265, 0x3EC9, 0x8319,
288 0x1342, 0xD36E, 0x3EC7, 0xB3FF, 0x0000, 0x8365, 0x1420, 0x9570,
289 };
290
291 static const unsigned short init4[128] = {
292 0x0C10, 0x8470, 0x14FE, 0xB488, 0x167F, 0xA470, 0x18E7, 0x84B5,
293 0x1B6E, 0x842A, 0x1F1D, 0x852A, 0x0DA3, 0x0F7C, 0x167E, 0x7254,
294 0x0000, 0x842A, 0x0001, 0x852A, 0x18E6, 0x0BAA, 0x1B6D, 0x7234,
295 0x229F, 0x8429, 0x2746, 0x8529, 0x1F1C, 0x06E7, 0x229E, 0x7224,
296
297 0x0DA4, 0x8429, 0x2C29, 0x8529, 0x2745, 0x07F6, 0x2C28, 0x7254,
298 0x383B, 0x8428, 0x320F, 0x8528, 0x320E, 0x0F02, 0x1341, 0x7264,
299 0x3EB6, 0x8428, 0x3EB9, 0x8528, 0x383A, 0x0FA9, 0x3EB5, 0x7294,
300 0x3EB7, 0x8474, 0x3EBA, 0x8575, 0x3EB8, 0x44C3, 0x3EBB, 0x45C3,
301
302 0x0000, 0xA404, 0x0001, 0xA504, 0x141F, 0x0671, 0x14FD, 0x0287,
303 0x3EBC, 0xE610, 0x3EC8, 0x0C7B, 0x031A, 0x07E6, 0x3EC8, 0x86F7,
304 0x3EC0, 0x821E, 0x3EBE, 0xD208, 0x3EBD, 0x021F, 0x3ECA, 0x0386,
305 0x3EC1, 0x0C03, 0x3EC9, 0x031E, 0x3ECA, 0x8C4C, 0x3EBF, 0x0C55,
306
307 0x3EC9, 0xC208, 0x3EC4, 0xBC84, 0x3EC8, 0x0EAD, 0x3EC8, 0xD308,
308 0x3EC2, 0x8F7E, 0x3ECB, 0x0219, 0x3ECB, 0xD26E, 0x3EC5, 0x031F,
309 0x3EC6, 0xC308, 0x3EC3, 0x32FF, 0x3EC9, 0x0265, 0x3EC9, 0x8319,
310 0x1342, 0xD36E, 0x3EC7, 0x33FF, 0x0000, 0x8365, 0x1420, 0x9570,
311 };
312
313 /* send an initialization array
314 * Taken from the oss driver, not obvious from the doc how this
315 * is meant to work
316 */
317 static void
send_array(struct snd_emu8000 * emu,const unsigned short * data,int size)318 send_array(struct snd_emu8000 *emu, const unsigned short *data, int size)
319 {
320 int i;
321 const unsigned short *p;
322
323 p = data;
324 for (i = 0; i < size; i++, p++)
325 EMU8000_INIT1_WRITE(emu, i, *p);
326 for (i = 0; i < size; i++, p++)
327 EMU8000_INIT2_WRITE(emu, i, *p);
328 for (i = 0; i < size; i++, p++)
329 EMU8000_INIT3_WRITE(emu, i, *p);
330 for (i = 0; i < size; i++, p++)
331 EMU8000_INIT4_WRITE(emu, i, *p);
332 }
333
334
335 /*
336 * Send initialization arrays to start up, this just follows the
337 * initialisation sequence in the adip.
338 */
339 static void
init_arrays(struct snd_emu8000 * emu)340 init_arrays(struct snd_emu8000 *emu)
341 {
342 send_array(emu, init1, ARRAY_SIZE(init1)/4);
343
344 msleep((1024 * 1000) / 44100); /* wait for 1024 clocks */
345 send_array(emu, init2, ARRAY_SIZE(init2)/4);
346 send_array(emu, init3, ARRAY_SIZE(init3)/4);
347
348 EMU8000_HWCF4_WRITE(emu, 0);
349 EMU8000_HWCF5_WRITE(emu, 0x83);
350 EMU8000_HWCF6_WRITE(emu, 0x8000);
351
352 send_array(emu, init4, ARRAY_SIZE(init4)/4);
353 }
354
355
356 #define UNIQUE_ID1 0xa5b9
357 #define UNIQUE_ID2 0x9d53
358
359 /*
360 * Size the onboard memory.
361 * This is written so as not to need arbitrary delays after the write. It
362 * seems that the only way to do this is to use the one channel and keep
363 * reallocating between read and write.
364 */
365 static void
size_dram(struct snd_emu8000 * emu)366 size_dram(struct snd_emu8000 *emu)
367 {
368 int i, size;
369
370 if (emu->dram_checked)
371 return;
372
373 size = 0;
374
375 /* write out a magic number */
376 snd_emu8000_dma_chan(emu, 0, EMU8000_RAM_WRITE);
377 snd_emu8000_dma_chan(emu, 1, EMU8000_RAM_READ);
378 EMU8000_SMALW_WRITE(emu, EMU8000_DRAM_OFFSET);
379 EMU8000_SMLD_WRITE(emu, UNIQUE_ID1);
380 snd_emu8000_init_fm(emu); /* This must really be here and not 2 lines back even */
381 snd_emu8000_write_wait(emu);
382
383 /*
384 * Detect first 512 KiB. If a write succeeds at the beginning of a
385 * 512 KiB page we assume that the whole page is there.
386 */
387 EMU8000_SMALR_WRITE(emu, EMU8000_DRAM_OFFSET);
388 EMU8000_SMLD_READ(emu); /* discard stale data */
389 if (EMU8000_SMLD_READ(emu) != UNIQUE_ID1)
390 goto skip_detect; /* No RAM */
391 snd_emu8000_read_wait(emu);
392
393 for (size = 512 * 1024; size < EMU8000_MAX_DRAM; size += 512 * 1024) {
394
395 /* Write a unique data on the test address.
396 * if the address is out of range, the data is written on
397 * 0x200000(=EMU8000_DRAM_OFFSET). Then the id word is
398 * changed by this data.
399 */
400 /*snd_emu8000_dma_chan(emu, 0, EMU8000_RAM_WRITE);*/
401 EMU8000_SMALW_WRITE(emu, EMU8000_DRAM_OFFSET + (size>>1));
402 EMU8000_SMLD_WRITE(emu, UNIQUE_ID2);
403 snd_emu8000_write_wait(emu);
404
405 /*
406 * read the data on the just written DRAM address
407 * if not the same then we have reached the end of ram.
408 */
409 /*snd_emu8000_dma_chan(emu, 0, EMU8000_RAM_READ);*/
410 EMU8000_SMALR_WRITE(emu, EMU8000_DRAM_OFFSET + (size>>1));
411 /*snd_emu8000_read_wait(emu);*/
412 EMU8000_SMLD_READ(emu); /* discard stale data */
413 if (EMU8000_SMLD_READ(emu) != UNIQUE_ID2)
414 break; /* no memory at this address */
415 snd_emu8000_read_wait(emu);
416
417 /*
418 * If it is the same it could be that the address just
419 * wraps back to the beginning; so check to see if the
420 * initial value has been overwritten.
421 */
422 EMU8000_SMALR_WRITE(emu, EMU8000_DRAM_OFFSET);
423 EMU8000_SMLD_READ(emu); /* discard stale data */
424 if (EMU8000_SMLD_READ(emu) != UNIQUE_ID1)
425 break; /* we must have wrapped around */
426 snd_emu8000_read_wait(emu);
427
428 /* Otherwise, it's valid memory. */
429 }
430
431 skip_detect:
432 /* wait until FULL bit in SMAxW register is false */
433 for (i = 0; i < 10000; i++) {
434 if ((EMU8000_SMALW_READ(emu) & 0x80000000) == 0)
435 break;
436 schedule_timeout_interruptible(1);
437 if (signal_pending(current))
438 break;
439 }
440 snd_emu8000_dma_chan(emu, 0, EMU8000_RAM_CLOSE);
441 snd_emu8000_dma_chan(emu, 1, EMU8000_RAM_CLOSE);
442
443 pr_info("EMU8000 [0x%lx]: %d KiB on-board DRAM detected\n",
444 emu->port1, size/1024);
445
446 emu->mem_size = size;
447 emu->dram_checked = 1;
448 }
449
450
451 /*
452 * Initiailise the FM section. You have to do this to use sample RAM
453 * and therefore lose 2 voices.
454 */
455 /*exported*/ void
snd_emu8000_init_fm(struct snd_emu8000 * emu)456 snd_emu8000_init_fm(struct snd_emu8000 *emu)
457 {
458 unsigned long flags;
459
460 /* Initialize the last two channels for DRAM refresh and producing
461 the reverb and chorus effects for Yamaha OPL-3 synthesizer */
462
463 /* 31: FM left channel, 0xffffe0-0xffffe8 */
464 EMU8000_DCYSUSV_WRITE(emu, 30, 0x80);
465 EMU8000_PSST_WRITE(emu, 30, 0xFFFFFFE0); /* full left */
466 EMU8000_CSL_WRITE(emu, 30, 0x00FFFFE8 | (emu->fm_chorus_depth << 24));
467 EMU8000_PTRX_WRITE(emu, 30, (emu->fm_reverb_depth << 8));
468 EMU8000_CPF_WRITE(emu, 30, 0);
469 EMU8000_CCCA_WRITE(emu, 30, 0x00FFFFE3);
470
471 /* 32: FM right channel, 0xfffff0-0xfffff8 */
472 EMU8000_DCYSUSV_WRITE(emu, 31, 0x80);
473 EMU8000_PSST_WRITE(emu, 31, 0x00FFFFF0); /* full right */
474 EMU8000_CSL_WRITE(emu, 31, 0x00FFFFF8 | (emu->fm_chorus_depth << 24));
475 EMU8000_PTRX_WRITE(emu, 31, (emu->fm_reverb_depth << 8));
476 EMU8000_CPF_WRITE(emu, 31, 0x8000);
477 EMU8000_CCCA_WRITE(emu, 31, 0x00FFFFF3);
478
479 snd_emu8000_poke((emu), EMU8000_DATA0(emu), EMU8000_CMD(1, (30)), 0);
480
481 spin_lock_irqsave(&emu->reg_lock, flags);
482 while (!(inw(EMU8000_PTR(emu)) & 0x1000))
483 ;
484 while ((inw(EMU8000_PTR(emu)) & 0x1000))
485 ;
486 spin_unlock_irqrestore(&emu->reg_lock, flags);
487 snd_emu8000_poke((emu), EMU8000_DATA0(emu), EMU8000_CMD(1, (30)), 0x4828);
488 /* this is really odd part.. */
489 outb(0x3C, EMU8000_PTR(emu));
490 outb(0, EMU8000_DATA1(emu));
491
492 /* skew volume & cutoff */
493 EMU8000_VTFT_WRITE(emu, 30, 0x8000FFFF);
494 EMU8000_VTFT_WRITE(emu, 31, 0x8000FFFF);
495 }
496
497
498 /*
499 * The main initialization routine.
500 */
501 static void
snd_emu8000_init_hw(struct snd_emu8000 * emu)502 snd_emu8000_init_hw(struct snd_emu8000 *emu)
503 {
504 int i;
505
506 emu->last_reg = 0xffff; /* reset the last register index */
507
508 /* initialize hardware configuration */
509 EMU8000_HWCF1_WRITE(emu, 0x0059);
510 EMU8000_HWCF2_WRITE(emu, 0x0020);
511
512 /* disable audio; this seems to reduce a clicking noise a bit.. */
513 EMU8000_HWCF3_WRITE(emu, 0);
514
515 /* initialize audio channels */
516 init_audio(emu);
517
518 /* initialize DMA */
519 init_dma(emu);
520
521 /* initialize init arrays */
522 init_arrays(emu);
523
524 /*
525 * Initialize the FM section of the AWE32, this is needed
526 * for DRAM refresh as well
527 */
528 snd_emu8000_init_fm(emu);
529
530 /* terminate all voices */
531 for (i = 0; i < EMU8000_DRAM_VOICES; i++)
532 EMU8000_DCYSUSV_WRITE(emu, 0, 0x807F);
533
534 /* check DRAM memory size */
535 size_dram(emu);
536
537 /* enable audio */
538 EMU8000_HWCF3_WRITE(emu, 0x4);
539
540 /* set equzlier, chorus and reverb modes */
541 snd_emu8000_update_equalizer(emu);
542 snd_emu8000_update_chorus_mode(emu);
543 snd_emu8000_update_reverb_mode(emu);
544 }
545
546
547 /*----------------------------------------------------------------
548 * Bass/Treble Equalizer
549 *----------------------------------------------------------------*/
550
551 static const unsigned short bass_parm[12][3] = {
552 {0xD26A, 0xD36A, 0x0000}, /* -12 dB */
553 {0xD25B, 0xD35B, 0x0000}, /* -8 */
554 {0xD24C, 0xD34C, 0x0000}, /* -6 */
555 {0xD23D, 0xD33D, 0x0000}, /* -4 */
556 {0xD21F, 0xD31F, 0x0000}, /* -2 */
557 {0xC208, 0xC308, 0x0001}, /* 0 (HW default) */
558 {0xC219, 0xC319, 0x0001}, /* +2 */
559 {0xC22A, 0xC32A, 0x0001}, /* +4 */
560 {0xC24C, 0xC34C, 0x0001}, /* +6 */
561 {0xC26E, 0xC36E, 0x0001}, /* +8 */
562 {0xC248, 0xC384, 0x0002}, /* +10 */
563 {0xC26A, 0xC36A, 0x0002}, /* +12 dB */
564 };
565
566 static const unsigned short treble_parm[12][9] = {
567 {0x821E, 0xC26A, 0x031E, 0xC36A, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, /* -12 dB */
568 {0x821E, 0xC25B, 0x031E, 0xC35B, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001},
569 {0x821E, 0xC24C, 0x031E, 0xC34C, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001},
570 {0x821E, 0xC23D, 0x031E, 0xC33D, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001},
571 {0x821E, 0xC21F, 0x031E, 0xC31F, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001},
572 {0x821E, 0xD208, 0x031E, 0xD308, 0x021E, 0xD208, 0x831E, 0xD308, 0x0002},
573 {0x821E, 0xD208, 0x031E, 0xD308, 0x021D, 0xD219, 0x831D, 0xD319, 0x0002},
574 {0x821E, 0xD208, 0x031E, 0xD308, 0x021C, 0xD22A, 0x831C, 0xD32A, 0x0002},
575 {0x821E, 0xD208, 0x031E, 0xD308, 0x021A, 0xD24C, 0x831A, 0xD34C, 0x0002},
576 {0x821E, 0xD208, 0x031E, 0xD308, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002}, /* +8 (HW default) */
577 {0x821D, 0xD219, 0x031D, 0xD319, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002},
578 {0x821C, 0xD22A, 0x031C, 0xD32A, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002} /* +12 dB */
579 };
580
581
582 /*
583 * set Emu8000 digital equalizer; from 0 to 11 [-12dB - 12dB]
584 */
585 /*exported*/ void
snd_emu8000_update_equalizer(struct snd_emu8000 * emu)586 snd_emu8000_update_equalizer(struct snd_emu8000 *emu)
587 {
588 unsigned short w;
589 int bass = emu->bass_level;
590 int treble = emu->treble_level;
591
592 if (bass < 0 || bass > 11 || treble < 0 || treble > 11)
593 return;
594 EMU8000_INIT4_WRITE(emu, 0x01, bass_parm[bass][0]);
595 EMU8000_INIT4_WRITE(emu, 0x11, bass_parm[bass][1]);
596 EMU8000_INIT3_WRITE(emu, 0x11, treble_parm[treble][0]);
597 EMU8000_INIT3_WRITE(emu, 0x13, treble_parm[treble][1]);
598 EMU8000_INIT3_WRITE(emu, 0x1b, treble_parm[treble][2]);
599 EMU8000_INIT4_WRITE(emu, 0x07, treble_parm[treble][3]);
600 EMU8000_INIT4_WRITE(emu, 0x0b, treble_parm[treble][4]);
601 EMU8000_INIT4_WRITE(emu, 0x0d, treble_parm[treble][5]);
602 EMU8000_INIT4_WRITE(emu, 0x17, treble_parm[treble][6]);
603 EMU8000_INIT4_WRITE(emu, 0x19, treble_parm[treble][7]);
604 w = bass_parm[bass][2] + treble_parm[treble][8];
605 EMU8000_INIT4_WRITE(emu, 0x15, (unsigned short)(w + 0x0262));
606 EMU8000_INIT4_WRITE(emu, 0x1d, (unsigned short)(w + 0x8362));
607 }
608
609
610 /*----------------------------------------------------------------
611 * Chorus mode control
612 *----------------------------------------------------------------*/
613
614 /*
615 * chorus mode parameters
616 */
617 #define SNDRV_EMU8000_CHORUS_1 0
618 #define SNDRV_EMU8000_CHORUS_2 1
619 #define SNDRV_EMU8000_CHORUS_3 2
620 #define SNDRV_EMU8000_CHORUS_4 3
621 #define SNDRV_EMU8000_CHORUS_FEEDBACK 4
622 #define SNDRV_EMU8000_CHORUS_FLANGER 5
623 #define SNDRV_EMU8000_CHORUS_SHORTDELAY 6
624 #define SNDRV_EMU8000_CHORUS_SHORTDELAY2 7
625 #define SNDRV_EMU8000_CHORUS_PREDEFINED 8
626 /* user can define chorus modes up to 32 */
627 #define SNDRV_EMU8000_CHORUS_NUMBERS 32
628
629 struct soundfont_chorus_fx {
630 unsigned short feedback; /* feedback level (0xE600-0xE6FF) */
631 unsigned short delay_offset; /* delay (0-0x0DA3) [1/44100 sec] */
632 unsigned short lfo_depth; /* LFO depth (0xBC00-0xBCFF) */
633 unsigned int delay; /* right delay (0-0xFFFFFFFF) [1/256/44100 sec] */
634 unsigned int lfo_freq; /* LFO freq LFO freq (0-0xFFFFFFFF) */
635 };
636
637 /* 5 parameters for each chorus mode; 3 x 16bit, 2 x 32bit */
638 static char chorus_defined[SNDRV_EMU8000_CHORUS_NUMBERS];
639 static struct soundfont_chorus_fx chorus_parm[SNDRV_EMU8000_CHORUS_NUMBERS] = {
640 {0xE600, 0x03F6, 0xBC2C ,0x00000000, 0x0000006D}, /* chorus 1 */
641 {0xE608, 0x031A, 0xBC6E, 0x00000000, 0x0000017C}, /* chorus 2 */
642 {0xE610, 0x031A, 0xBC84, 0x00000000, 0x00000083}, /* chorus 3 */
643 {0xE620, 0x0269, 0xBC6E, 0x00000000, 0x0000017C}, /* chorus 4 */
644 {0xE680, 0x04D3, 0xBCA6, 0x00000000, 0x0000005B}, /* feedback */
645 {0xE6E0, 0x044E, 0xBC37, 0x00000000, 0x00000026}, /* flanger */
646 {0xE600, 0x0B06, 0xBC00, 0x0006E000, 0x00000083}, /* short delay */
647 {0xE6C0, 0x0B06, 0xBC00, 0x0006E000, 0x00000083}, /* short delay + feedback */
648 };
649
650 /*exported*/ int
snd_emu8000_load_chorus_fx(struct snd_emu8000 * emu,int mode,const void __user * buf,long len)651 snd_emu8000_load_chorus_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len)
652 {
653 struct soundfont_chorus_fx rec;
654 if (mode < SNDRV_EMU8000_CHORUS_PREDEFINED || mode >= SNDRV_EMU8000_CHORUS_NUMBERS) {
655 snd_printk(KERN_WARNING "invalid chorus mode %d for uploading\n", mode);
656 return -EINVAL;
657 }
658 if (len < (long)sizeof(rec) || copy_from_user(&rec, buf, sizeof(rec)))
659 return -EFAULT;
660 chorus_parm[mode] = rec;
661 chorus_defined[mode] = 1;
662 return 0;
663 }
664
665 /*exported*/ void
snd_emu8000_update_chorus_mode(struct snd_emu8000 * emu)666 snd_emu8000_update_chorus_mode(struct snd_emu8000 *emu)
667 {
668 int effect = emu->chorus_mode;
669 if (effect < 0 || effect >= SNDRV_EMU8000_CHORUS_NUMBERS ||
670 (effect >= SNDRV_EMU8000_CHORUS_PREDEFINED && !chorus_defined[effect]))
671 return;
672 EMU8000_INIT3_WRITE(emu, 0x09, chorus_parm[effect].feedback);
673 EMU8000_INIT3_WRITE(emu, 0x0c, chorus_parm[effect].delay_offset);
674 EMU8000_INIT4_WRITE(emu, 0x03, chorus_parm[effect].lfo_depth);
675 EMU8000_HWCF4_WRITE(emu, chorus_parm[effect].delay);
676 EMU8000_HWCF5_WRITE(emu, chorus_parm[effect].lfo_freq);
677 EMU8000_HWCF6_WRITE(emu, 0x8000);
678 EMU8000_HWCF7_WRITE(emu, 0x0000);
679 }
680
681 /*----------------------------------------------------------------
682 * Reverb mode control
683 *----------------------------------------------------------------*/
684
685 /*
686 * reverb mode parameters
687 */
688 #define SNDRV_EMU8000_REVERB_ROOM1 0
689 #define SNDRV_EMU8000_REVERB_ROOM2 1
690 #define SNDRV_EMU8000_REVERB_ROOM3 2
691 #define SNDRV_EMU8000_REVERB_HALL1 3
692 #define SNDRV_EMU8000_REVERB_HALL2 4
693 #define SNDRV_EMU8000_REVERB_PLATE 5
694 #define SNDRV_EMU8000_REVERB_DELAY 6
695 #define SNDRV_EMU8000_REVERB_PANNINGDELAY 7
696 #define SNDRV_EMU8000_REVERB_PREDEFINED 8
697 /* user can define reverb modes up to 32 */
698 #define SNDRV_EMU8000_REVERB_NUMBERS 32
699
700 struct soundfont_reverb_fx {
701 unsigned short parms[28];
702 };
703
704 /* reverb mode settings; write the following 28 data of 16 bit length
705 * on the corresponding ports in the reverb_cmds array
706 */
707 static char reverb_defined[SNDRV_EMU8000_CHORUS_NUMBERS];
708 static struct soundfont_reverb_fx reverb_parm[SNDRV_EMU8000_REVERB_NUMBERS] = {
709 {{ /* room 1 */
710 0xB488, 0xA450, 0x9550, 0x84B5, 0x383A, 0x3EB5, 0x72F4,
711 0x72A4, 0x7254, 0x7204, 0x7204, 0x7204, 0x4416, 0x4516,
712 0xA490, 0xA590, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429,
713 0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528,
714 }},
715 {{ /* room 2 */
716 0xB488, 0xA458, 0x9558, 0x84B5, 0x383A, 0x3EB5, 0x7284,
717 0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4448, 0x4548,
718 0xA440, 0xA540, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429,
719 0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528,
720 }},
721 {{ /* room 3 */
722 0xB488, 0xA460, 0x9560, 0x84B5, 0x383A, 0x3EB5, 0x7284,
723 0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4416, 0x4516,
724 0xA490, 0xA590, 0x842C, 0x852C, 0x842C, 0x852C, 0x842B,
725 0x852B, 0x842B, 0x852B, 0x842A, 0x852A, 0x842A, 0x852A,
726 }},
727 {{ /* hall 1 */
728 0xB488, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7284,
729 0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4448, 0x4548,
730 0xA440, 0xA540, 0x842B, 0x852B, 0x842B, 0x852B, 0x842A,
731 0x852A, 0x842A, 0x852A, 0x8429, 0x8529, 0x8429, 0x8529,
732 }},
733 {{ /* hall 2 */
734 0xB488, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7254,
735 0x7234, 0x7224, 0x7254, 0x7264, 0x7294, 0x44C3, 0x45C3,
736 0xA404, 0xA504, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429,
737 0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528,
738 }},
739 {{ /* plate */
740 0xB4FF, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7234,
741 0x7234, 0x7234, 0x7234, 0x7234, 0x7234, 0x4448, 0x4548,
742 0xA440, 0xA540, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429,
743 0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528,
744 }},
745 {{ /* delay */
746 0xB4FF, 0xA470, 0x9500, 0x84B5, 0x333A, 0x39B5, 0x7204,
747 0x7204, 0x7204, 0x7204, 0x7204, 0x72F4, 0x4400, 0x4500,
748 0xA4FF, 0xA5FF, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420,
749 0x8520, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, 0x8520,
750 }},
751 {{ /* panning delay */
752 0xB4FF, 0xA490, 0x9590, 0x8474, 0x333A, 0x39B5, 0x7204,
753 0x7204, 0x7204, 0x7204, 0x7204, 0x72F4, 0x4400, 0x4500,
754 0xA4FF, 0xA5FF, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420,
755 0x8520, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, 0x8520,
756 }},
757 };
758
759 enum { DATA1, DATA2 };
760 #define AWE_INIT1(c) EMU8000_CMD(2,c), DATA1
761 #define AWE_INIT2(c) EMU8000_CMD(2,c), DATA2
762 #define AWE_INIT3(c) EMU8000_CMD(3,c), DATA1
763 #define AWE_INIT4(c) EMU8000_CMD(3,c), DATA2
764
765 static struct reverb_cmd_pair {
766 unsigned short cmd, port;
767 } reverb_cmds[28] = {
768 {AWE_INIT1(0x03)}, {AWE_INIT1(0x05)}, {AWE_INIT4(0x1F)}, {AWE_INIT1(0x07)},
769 {AWE_INIT2(0x14)}, {AWE_INIT2(0x16)}, {AWE_INIT1(0x0F)}, {AWE_INIT1(0x17)},
770 {AWE_INIT1(0x1F)}, {AWE_INIT2(0x07)}, {AWE_INIT2(0x0F)}, {AWE_INIT2(0x17)},
771 {AWE_INIT2(0x1D)}, {AWE_INIT2(0x1F)}, {AWE_INIT3(0x01)}, {AWE_INIT3(0x03)},
772 {AWE_INIT1(0x09)}, {AWE_INIT1(0x0B)}, {AWE_INIT1(0x11)}, {AWE_INIT1(0x13)},
773 {AWE_INIT1(0x19)}, {AWE_INIT1(0x1B)}, {AWE_INIT2(0x01)}, {AWE_INIT2(0x03)},
774 {AWE_INIT2(0x09)}, {AWE_INIT2(0x0B)}, {AWE_INIT2(0x11)}, {AWE_INIT2(0x13)},
775 };
776
777 /*exported*/ int
snd_emu8000_load_reverb_fx(struct snd_emu8000 * emu,int mode,const void __user * buf,long len)778 snd_emu8000_load_reverb_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len)
779 {
780 struct soundfont_reverb_fx rec;
781
782 if (mode < SNDRV_EMU8000_REVERB_PREDEFINED || mode >= SNDRV_EMU8000_REVERB_NUMBERS) {
783 snd_printk(KERN_WARNING "invalid reverb mode %d for uploading\n", mode);
784 return -EINVAL;
785 }
786 if (len < (long)sizeof(rec) || copy_from_user(&rec, buf, sizeof(rec)))
787 return -EFAULT;
788 reverb_parm[mode] = rec;
789 reverb_defined[mode] = 1;
790 return 0;
791 }
792
793 /*exported*/ void
snd_emu8000_update_reverb_mode(struct snd_emu8000 * emu)794 snd_emu8000_update_reverb_mode(struct snd_emu8000 *emu)
795 {
796 int effect = emu->reverb_mode;
797 int i;
798
799 if (effect < 0 || effect >= SNDRV_EMU8000_REVERB_NUMBERS ||
800 (effect >= SNDRV_EMU8000_REVERB_PREDEFINED && !reverb_defined[effect]))
801 return;
802 for (i = 0; i < 28; i++) {
803 int port;
804 if (reverb_cmds[i].port == DATA1)
805 port = EMU8000_DATA1(emu);
806 else
807 port = EMU8000_DATA2(emu);
808 snd_emu8000_poke(emu, port, reverb_cmds[i].cmd, reverb_parm[effect].parms[i]);
809 }
810 }
811
812
813 /*----------------------------------------------------------------
814 * mixer interface
815 *----------------------------------------------------------------*/
816
817 /*
818 * bass/treble
819 */
mixer_bass_treble_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)820 static int mixer_bass_treble_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
821 {
822 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
823 uinfo->count = 1;
824 uinfo->value.integer.min = 0;
825 uinfo->value.integer.max = 11;
826 return 0;
827 }
828
mixer_bass_treble_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)829 static int mixer_bass_treble_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
830 {
831 struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
832
833 ucontrol->value.integer.value[0] = kcontrol->private_value ? emu->treble_level : emu->bass_level;
834 return 0;
835 }
836
mixer_bass_treble_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)837 static int mixer_bass_treble_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
838 {
839 struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
840 unsigned long flags;
841 int change;
842 unsigned short val1;
843
844 val1 = ucontrol->value.integer.value[0] % 12;
845 spin_lock_irqsave(&emu->control_lock, flags);
846 if (kcontrol->private_value) {
847 change = val1 != emu->treble_level;
848 emu->treble_level = val1;
849 } else {
850 change = val1 != emu->bass_level;
851 emu->bass_level = val1;
852 }
853 spin_unlock_irqrestore(&emu->control_lock, flags);
854 snd_emu8000_update_equalizer(emu);
855 return change;
856 }
857
858 static const struct snd_kcontrol_new mixer_bass_control =
859 {
860 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
861 .name = "Synth Tone Control - Bass",
862 .info = mixer_bass_treble_info,
863 .get = mixer_bass_treble_get,
864 .put = mixer_bass_treble_put,
865 .private_value = 0,
866 };
867
868 static const struct snd_kcontrol_new mixer_treble_control =
869 {
870 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
871 .name = "Synth Tone Control - Treble",
872 .info = mixer_bass_treble_info,
873 .get = mixer_bass_treble_get,
874 .put = mixer_bass_treble_put,
875 .private_value = 1,
876 };
877
878 /*
879 * chorus/reverb mode
880 */
mixer_chorus_reverb_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)881 static int mixer_chorus_reverb_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
882 {
883 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
884 uinfo->count = 1;
885 uinfo->value.integer.min = 0;
886 uinfo->value.integer.max = kcontrol->private_value ? (SNDRV_EMU8000_CHORUS_NUMBERS-1) : (SNDRV_EMU8000_REVERB_NUMBERS-1);
887 return 0;
888 }
889
mixer_chorus_reverb_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)890 static int mixer_chorus_reverb_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
891 {
892 struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
893
894 ucontrol->value.integer.value[0] = kcontrol->private_value ? emu->chorus_mode : emu->reverb_mode;
895 return 0;
896 }
897
mixer_chorus_reverb_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)898 static int mixer_chorus_reverb_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
899 {
900 struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
901 unsigned long flags;
902 int change;
903 unsigned short val1;
904
905 spin_lock_irqsave(&emu->control_lock, flags);
906 if (kcontrol->private_value) {
907 val1 = ucontrol->value.integer.value[0] % SNDRV_EMU8000_CHORUS_NUMBERS;
908 change = val1 != emu->chorus_mode;
909 emu->chorus_mode = val1;
910 } else {
911 val1 = ucontrol->value.integer.value[0] % SNDRV_EMU8000_REVERB_NUMBERS;
912 change = val1 != emu->reverb_mode;
913 emu->reverb_mode = val1;
914 }
915 spin_unlock_irqrestore(&emu->control_lock, flags);
916 if (change) {
917 if (kcontrol->private_value)
918 snd_emu8000_update_chorus_mode(emu);
919 else
920 snd_emu8000_update_reverb_mode(emu);
921 }
922 return change;
923 }
924
925 static const struct snd_kcontrol_new mixer_chorus_mode_control =
926 {
927 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
928 .name = "Chorus Mode",
929 .info = mixer_chorus_reverb_info,
930 .get = mixer_chorus_reverb_get,
931 .put = mixer_chorus_reverb_put,
932 .private_value = 1,
933 };
934
935 static const struct snd_kcontrol_new mixer_reverb_mode_control =
936 {
937 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
938 .name = "Reverb Mode",
939 .info = mixer_chorus_reverb_info,
940 .get = mixer_chorus_reverb_get,
941 .put = mixer_chorus_reverb_put,
942 .private_value = 0,
943 };
944
945 /*
946 * FM OPL3 chorus/reverb depth
947 */
mixer_fm_depth_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)948 static int mixer_fm_depth_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
949 {
950 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
951 uinfo->count = 1;
952 uinfo->value.integer.min = 0;
953 uinfo->value.integer.max = 255;
954 return 0;
955 }
956
mixer_fm_depth_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)957 static int mixer_fm_depth_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
958 {
959 struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
960
961 ucontrol->value.integer.value[0] = kcontrol->private_value ? emu->fm_chorus_depth : emu->fm_reverb_depth;
962 return 0;
963 }
964
mixer_fm_depth_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)965 static int mixer_fm_depth_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
966 {
967 struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
968 unsigned long flags;
969 int change;
970 unsigned short val1;
971
972 val1 = ucontrol->value.integer.value[0] % 256;
973 spin_lock_irqsave(&emu->control_lock, flags);
974 if (kcontrol->private_value) {
975 change = val1 != emu->fm_chorus_depth;
976 emu->fm_chorus_depth = val1;
977 } else {
978 change = val1 != emu->fm_reverb_depth;
979 emu->fm_reverb_depth = val1;
980 }
981 spin_unlock_irqrestore(&emu->control_lock, flags);
982 if (change)
983 snd_emu8000_init_fm(emu);
984 return change;
985 }
986
987 static const struct snd_kcontrol_new mixer_fm_chorus_depth_control =
988 {
989 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
990 .name = "FM Chorus Depth",
991 .info = mixer_fm_depth_info,
992 .get = mixer_fm_depth_get,
993 .put = mixer_fm_depth_put,
994 .private_value = 1,
995 };
996
997 static const struct snd_kcontrol_new mixer_fm_reverb_depth_control =
998 {
999 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1000 .name = "FM Reverb Depth",
1001 .info = mixer_fm_depth_info,
1002 .get = mixer_fm_depth_get,
1003 .put = mixer_fm_depth_put,
1004 .private_value = 0,
1005 };
1006
1007
1008 static const struct snd_kcontrol_new *mixer_defs[EMU8000_NUM_CONTROLS] = {
1009 &mixer_bass_control,
1010 &mixer_treble_control,
1011 &mixer_chorus_mode_control,
1012 &mixer_reverb_mode_control,
1013 &mixer_fm_chorus_depth_control,
1014 &mixer_fm_reverb_depth_control,
1015 };
1016
1017 /*
1018 * create and attach mixer elements for WaveTable treble/bass controls
1019 */
1020 static int
snd_emu8000_create_mixer(struct snd_card * card,struct snd_emu8000 * emu)1021 snd_emu8000_create_mixer(struct snd_card *card, struct snd_emu8000 *emu)
1022 {
1023 int i, err = 0;
1024
1025 if (snd_BUG_ON(!emu || !card))
1026 return -EINVAL;
1027
1028 spin_lock_init(&emu->control_lock);
1029
1030 memset(emu->controls, 0, sizeof(emu->controls));
1031 for (i = 0; i < EMU8000_NUM_CONTROLS; i++) {
1032 if ((err = snd_ctl_add(card, emu->controls[i] = snd_ctl_new1(mixer_defs[i], emu))) < 0)
1033 goto __error;
1034 }
1035 return 0;
1036
1037 __error:
1038 for (i = 0; i < EMU8000_NUM_CONTROLS; i++) {
1039 down_write(&card->controls_rwsem);
1040 if (emu->controls[i])
1041 snd_ctl_remove(card, emu->controls[i]);
1042 up_write(&card->controls_rwsem);
1043 }
1044 return err;
1045 }
1046
1047
1048 /*
1049 * free resources
1050 */
snd_emu8000_free(struct snd_emu8000 * hw)1051 static int snd_emu8000_free(struct snd_emu8000 *hw)
1052 {
1053 release_and_free_resource(hw->res_port1);
1054 release_and_free_resource(hw->res_port2);
1055 release_and_free_resource(hw->res_port3);
1056 kfree(hw);
1057 return 0;
1058 }
1059
1060 /*
1061 */
snd_emu8000_dev_free(struct snd_device * device)1062 static int snd_emu8000_dev_free(struct snd_device *device)
1063 {
1064 struct snd_emu8000 *hw = device->device_data;
1065 return snd_emu8000_free(hw);
1066 }
1067
1068 /*
1069 * initialize and register emu8000 synth device.
1070 */
1071 int
snd_emu8000_new(struct snd_card * card,int index,long port,int seq_ports,struct snd_seq_device ** awe_ret)1072 snd_emu8000_new(struct snd_card *card, int index, long port, int seq_ports,
1073 struct snd_seq_device **awe_ret)
1074 {
1075 struct snd_seq_device *awe;
1076 struct snd_emu8000 *hw;
1077 int err;
1078 static const struct snd_device_ops ops = {
1079 .dev_free = snd_emu8000_dev_free,
1080 };
1081
1082 if (awe_ret)
1083 *awe_ret = NULL;
1084
1085 if (seq_ports <= 0)
1086 return 0;
1087
1088 hw = kzalloc(sizeof(*hw), GFP_KERNEL);
1089 if (hw == NULL)
1090 return -ENOMEM;
1091 spin_lock_init(&hw->reg_lock);
1092 hw->index = index;
1093 hw->port1 = port;
1094 hw->port2 = port + 0x400;
1095 hw->port3 = port + 0x800;
1096 if (!(hw->res_port1 = request_region(hw->port1, 4, "Emu8000-1")) ||
1097 !(hw->res_port2 = request_region(hw->port2, 4, "Emu8000-2")) ||
1098 !(hw->res_port3 = request_region(hw->port3, 4, "Emu8000-3"))) {
1099 snd_printk(KERN_ERR "sbawe: can't grab ports 0x%lx, 0x%lx, 0x%lx\n", hw->port1, hw->port2, hw->port3);
1100 snd_emu8000_free(hw);
1101 return -EBUSY;
1102 }
1103 hw->mem_size = 0;
1104 hw->card = card;
1105 hw->seq_ports = seq_ports;
1106 hw->bass_level = 5;
1107 hw->treble_level = 9;
1108 hw->chorus_mode = 2;
1109 hw->reverb_mode = 4;
1110 hw->fm_chorus_depth = 0;
1111 hw->fm_reverb_depth = 0;
1112
1113 if (snd_emu8000_detect(hw) < 0) {
1114 snd_emu8000_free(hw);
1115 return -ENODEV;
1116 }
1117
1118 snd_emu8000_init_hw(hw);
1119 if ((err = snd_emu8000_create_mixer(card, hw)) < 0) {
1120 snd_emu8000_free(hw);
1121 return err;
1122 }
1123
1124 if ((err = snd_device_new(card, SNDRV_DEV_CODEC, hw, &ops)) < 0) {
1125 snd_emu8000_free(hw);
1126 return err;
1127 }
1128 #if IS_ENABLED(CONFIG_SND_SEQUENCER)
1129 if (snd_seq_device_new(card, index, SNDRV_SEQ_DEV_ID_EMU8000,
1130 sizeof(struct snd_emu8000*), &awe) >= 0) {
1131 strcpy(awe->name, "EMU-8000");
1132 *(struct snd_emu8000 **)SNDRV_SEQ_DEVICE_ARGPTR(awe) = hw;
1133 }
1134 #else
1135 awe = NULL;
1136 #endif
1137 if (awe_ret)
1138 *awe_ret = awe;
1139
1140 return 0;
1141 }
1142
1143
1144 /*
1145 * exported stuff
1146 */
1147
1148 EXPORT_SYMBOL(snd_emu8000_poke);
1149 EXPORT_SYMBOL(snd_emu8000_peek);
1150 EXPORT_SYMBOL(snd_emu8000_poke_dw);
1151 EXPORT_SYMBOL(snd_emu8000_peek_dw);
1152 EXPORT_SYMBOL(snd_emu8000_dma_chan);
1153 EXPORT_SYMBOL(snd_emu8000_init_fm);
1154 EXPORT_SYMBOL(snd_emu8000_load_chorus_fx);
1155 EXPORT_SYMBOL(snd_emu8000_load_reverb_fx);
1156 EXPORT_SYMBOL(snd_emu8000_update_chorus_mode);
1157 EXPORT_SYMBOL(snd_emu8000_update_reverb_mode);
1158 EXPORT_SYMBOL(snd_emu8000_update_equalizer);
1159
