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Ondrej Zaryf9933482012-08-20 22:39:51 +02001/*
2 * Driver for C-Media CMI8328-based soundcards, such as AudioExcel AV500
3 * Copyright (c) 2012 Ondrej Zary
4 *
5 * AudioExcel AV500 card consists of:
6 * - CMI8328 - main chip (SB Pro emulation, gameport, OPL3, MPU401, CD-ROM)
7 * - CS4231A - WSS codec
8 * - Dream SAM9233+GMS950400+RAM+ROM: Wavetable MIDI, connected to MPU401
9 */
10
11#include <linux/init.h>
12#include <linux/isa.h>
13#include <linux/module.h>
14#include <linux/gameport.h>
15#include <asm/dma.h>
16#include <sound/core.h>
17#include <sound/wss.h>
18#include <sound/opl3.h>
19#include <sound/mpu401.h>
20#define SNDRV_LEGACY_FIND_FREE_IOPORT
21#define SNDRV_LEGACY_FIND_FREE_IRQ
22#define SNDRV_LEGACY_FIND_FREE_DMA
23#include <sound/initval.h>
24
25MODULE_AUTHOR("Ondrej Zary <linux@rainbow-software.org>");
26MODULE_DESCRIPTION("C-Media CMI8328");
27MODULE_LICENSE("GPL");
28
29#if defined(CONFIG_GAMEPORT) || defined(CONFIG_GAMEPORT_MODULE)
30#define SUPPORT_JOYSTICK 1
31#endif
32
33/* I/O port is configured by jumpers on the card to one of these */
34static int cmi8328_ports[] = { 0x530, 0xe80, 0xf40, 0x604 };
35#define CMI8328_MAX ARRAY_SIZE(cmi8328_ports)
36
37static int index[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = -1};
38static char *id[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = NULL};
39static long port[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_PORT};
40static int irq[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_IRQ};
41static int dma1[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_DMA};
42static int dma2[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_DMA};
43static long mpuport[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_PORT};
44static int mpuirq[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_IRQ};
45#ifdef SUPPORT_JOYSTICK
46static bool gameport[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = true};
47#endif
48
49module_param_array(index, int, NULL, 0444);
50MODULE_PARM_DESC(index, "Index value for CMI8328 soundcard.");
51module_param_array(id, charp, NULL, 0444);
52MODULE_PARM_DESC(id, "ID string for CMI8328 soundcard.");
53
54module_param_array(port, long, NULL, 0444);
55MODULE_PARM_DESC(port, "Port # for CMI8328 driver.");
56module_param_array(irq, int, NULL, 0444);
57MODULE_PARM_DESC(irq, "IRQ # for CMI8328 driver.");
58module_param_array(dma1, int, NULL, 0444);
59MODULE_PARM_DESC(dma1, "DMA1 for CMI8328 driver.");
60module_param_array(dma2, int, NULL, 0444);
61MODULE_PARM_DESC(dma2, "DMA2 for CMI8328 driver.");
62
63module_param_array(mpuport, long, NULL, 0444);
64MODULE_PARM_DESC(mpuport, "MPU-401 port # for CMI8328 driver.");
65module_param_array(mpuirq, int, NULL, 0444);
66MODULE_PARM_DESC(mpuirq, "IRQ # for CMI8328 MPU-401 port.");
67#ifdef SUPPORT_JOYSTICK
68module_param_array(gameport, bool, NULL, 0444);
69MODULE_PARM_DESC(gameport, "Enable gameport.");
70#endif
71
72struct snd_cmi8328 {
73 u16 port;
74 u8 cfg[3];
75 u8 wss_cfg;
76 struct snd_card *card;
77 struct snd_wss *wss;
78#ifdef SUPPORT_JOYSTICK
79 struct gameport *gameport;
80#endif
81};
82
83/* CMI8328 configuration registers */
84#define CFG1 0x61
85#define CFG1_SB_DISABLE (1 << 0)
86#define CFG1_GAMEPORT (1 << 1)
87/*
88 * bit 0: SB: 0=enabled, 1=disabled
89 * bit 1: gameport: 0=disabled, 1=enabled
90 * bits 2-4: SB IRQ: 001=3, 010=5, 011=7, 100=9, 101=10, 110=11
91 * bits 5-6: SB DMA: 00=disabled (when SB disabled), 01=DMA0, 10=DMA1, 11=DMA3
92 * bit 7: SB port: 0=0x220, 1=0x240
93 */
94#define CFG2 0x62
95#define CFG2_MPU_ENABLE (1 << 2)
96/*
97 * bits 0-1: CD-ROM mode: 00=disabled, 01=Panasonic, 10=Sony/Mitsumi/Wearnes,
98 11=IDE
99 * bit 2: MPU401: 0=disabled, 1=enabled
100 * bits 3-4: MPU401 IRQ: 00=3, 01=5, 10=7, 11=9,
101 * bits 5-7: MPU401 port: 000=0x300, 001=0x310, 010=0x320, 011=0x330, 100=0x332,
102 101=0x334, 110=0x336
103 */
104#define CFG3 0x63
105/*
106 * bits 0-2: CD-ROM IRQ: 000=disabled, 001=3, 010=5, 011=7, 100=9, 101=10,
107 110=11
108 * bits 3-4: CD-ROM DMA: 00=disabled, 01=DMA0, 10=DMA1, 11=DMA3
109 * bits 5-7: CD-ROM port: 000=0x300, 001=0x310, 010=0x320, 011=0x330, 100=0x340,
110 101=0x350, 110=0x360, 111=0x370
111 */
112
113static u8 snd_cmi8328_cfg_read(u16 port, u8 reg)
114{
115 outb(0x43, port + 3);
116 outb(0x21, port + 3);
117 outb(reg, port + 3);
118 return inb(port);
119}
120
121static void snd_cmi8328_cfg_write(u16 port, u8 reg, u8 val)
122{
123 outb(0x43, port + 3);
124 outb(0x21, port + 3);
125 outb(reg, port + 3);
126 outb(val, port + 3); /* yes, value goes to the same port as index */
127}
128
Takashi Iwai77ed16c2013-11-06 17:54:02 +0100129#ifdef CONFIG_PM
Ondrej Zaryf9933482012-08-20 22:39:51 +0200130static void snd_cmi8328_cfg_save(u16 port, u8 cfg[])
131{
132 cfg[0] = snd_cmi8328_cfg_read(port, CFG1);
133 cfg[1] = snd_cmi8328_cfg_read(port, CFG2);
134 cfg[2] = snd_cmi8328_cfg_read(port, CFG3);
135}
136
137static void snd_cmi8328_cfg_restore(u16 port, u8 cfg[])
138{
139 snd_cmi8328_cfg_write(port, CFG1, cfg[0]);
140 snd_cmi8328_cfg_write(port, CFG2, cfg[1]);
141 snd_cmi8328_cfg_write(port, CFG3, cfg[2]);
142}
Takashi Iwai77ed16c2013-11-06 17:54:02 +0100143#endif /* CONFIG_PM */
Ondrej Zaryf9933482012-08-20 22:39:51 +0200144
Bill Pemberton1bff2922012-12-06 12:35:21 -0500145static int snd_cmi8328_mixer(struct snd_wss *chip)
Ondrej Zaryf9933482012-08-20 22:39:51 +0200146{
147 struct snd_card *card;
148 struct snd_ctl_elem_id id1, id2;
149 int err;
150
151 card = chip->card;
152
153 memset(&id1, 0, sizeof(id1));
154 memset(&id2, 0, sizeof(id2));
155 id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
156 /* rename AUX0 switch to CD */
157 strcpy(id1.name, "Aux Playback Switch");
158 strcpy(id2.name, "CD Playback Switch");
159 err = snd_ctl_rename_id(card, &id1, &id2);
160 if (err < 0) {
161 snd_printk(KERN_ERR "error renaming control\n");
162 return err;
163 }
164 /* rename AUX0 volume to CD */
165 strcpy(id1.name, "Aux Playback Volume");
166 strcpy(id2.name, "CD Playback Volume");
167 err = snd_ctl_rename_id(card, &id1, &id2);
168 if (err < 0) {
169 snd_printk(KERN_ERR "error renaming control\n");
170 return err;
171 }
172 /* rename AUX1 switch to Synth */
173 strcpy(id1.name, "Aux Playback Switch");
174 id1.index = 1;
175 strcpy(id2.name, "Synth Playback Switch");
176 err = snd_ctl_rename_id(card, &id1, &id2);
177 if (err < 0) {
178 snd_printk(KERN_ERR "error renaming control\n");
179 return err;
180 }
181 /* rename AUX1 volume to Synth */
182 strcpy(id1.name, "Aux Playback Volume");
183 id1.index = 1;
184 strcpy(id2.name, "Synth Playback Volume");
185 err = snd_ctl_rename_id(card, &id1, &id2);
186 if (err < 0) {
187 snd_printk(KERN_ERR "error renaming control\n");
188 return err;
189 }
190
191 return 0;
192}
193
194/* find index of an item in "-1"-ended array */
195int array_find(int array[], int item)
196{
197 int i;
198
199 for (i = 0; array[i] != -1; i++)
200 if (array[i] == item)
201 return i;
202
203 return -1;
204}
205/* the same for long */
206int array_find_l(long array[], long item)
207{
208 int i;
209
210 for (i = 0; array[i] != -1; i++)
211 if (array[i] == item)
212 return i;
213
214 return -1;
215}
216
Bill Pemberton1bff2922012-12-06 12:35:21 -0500217static int snd_cmi8328_probe(struct device *pdev, unsigned int ndev)
Ondrej Zaryf9933482012-08-20 22:39:51 +0200218{
219 struct snd_card *card;
220 struct snd_opl3 *opl3;
221 struct snd_cmi8328 *cmi;
222#ifdef SUPPORT_JOYSTICK
223 struct resource *res;
224#endif
225 int err, pos;
226 static long mpu_ports[] = { 0x330, 0x300, 0x310, 0x320, 0x332, 0x334,
227 0x336, -1 };
228 static u8 mpu_port_bits[] = { 3, 0, 1, 2, 4, 5, 6 };
229 static int mpu_irqs[] = { 9, 7, 5, 3, -1 };
230 static u8 mpu_irq_bits[] = { 3, 2, 1, 0 };
231 static int irqs[] = { 9, 10, 11, 7, -1 };
232 static u8 irq_bits[] = { 2, 3, 4, 1 };
233 static int dma1s[] = { 3, 1, 0, -1 };
234 static u8 dma_bits[] = { 3, 2, 1 };
235 static int dma2s[][2] = { {1, -1}, {0, -1}, {-1, -1}, {0, -1} };
236 u16 port = cmi8328_ports[ndev];
237 u8 val;
238
239 /* 0xff is invalid configuration (but settable - hope it isn't set) */
240 if (snd_cmi8328_cfg_read(port, CFG1) == 0xff)
241 return -ENODEV;
242 /* the SB disable bit must NEVER EVER be cleared or the WSS dies */
243 snd_cmi8328_cfg_write(port, CFG1, CFG1_SB_DISABLE);
244 if (snd_cmi8328_cfg_read(port, CFG1) != CFG1_SB_DISABLE)
245 return -ENODEV;
246 /* disable everything first */
247 snd_cmi8328_cfg_write(port, CFG2, 0); /* disable CDROM and MPU401 */
248 snd_cmi8328_cfg_write(port, CFG3, 0); /* disable CDROM IRQ and DMA */
249
250 if (irq[ndev] == SNDRV_AUTO_IRQ) {
251 irq[ndev] = snd_legacy_find_free_irq(irqs);
252 if (irq[ndev] < 0) {
253 snd_printk(KERN_ERR "unable to find a free IRQ\n");
254 return -EBUSY;
255 }
256 }
257 if (dma1[ndev] == SNDRV_AUTO_DMA) {
258 dma1[ndev] = snd_legacy_find_free_dma(dma1s);
259 if (dma1[ndev] < 0) {
260 snd_printk(KERN_ERR "unable to find a free DMA1\n");
261 return -EBUSY;
262 }
263 }
264 if (dma2[ndev] == SNDRV_AUTO_DMA) {
265 dma2[ndev] = snd_legacy_find_free_dma(dma2s[dma1[ndev] % 4]);
266 if (dma2[ndev] < 0) {
267 snd_printk(KERN_WARNING "unable to find a free DMA2, full-duplex will not work\n");
268 dma2[ndev] = -1;
269 }
270 }
271 /* configure WSS IRQ... */
272 pos = array_find(irqs, irq[ndev]);
273 if (pos < 0) {
274 snd_printk(KERN_ERR "invalid IRQ %d\n", irq[ndev]);
275 return -EINVAL;
276 }
277 val = irq_bits[pos] << 3;
278 /* ...and DMA... */
279 pos = array_find(dma1s, dma1[ndev]);
280 if (pos < 0) {
281 snd_printk(KERN_ERR "invalid DMA1 %d\n", dma1[ndev]);
282 return -EINVAL;
283 }
284 val |= dma_bits[pos];
285 /* ...and DMA2 */
286 if (dma2[ndev] >= 0 && dma1[ndev] != dma2[ndev]) {
287 pos = array_find(dma2s[dma1[ndev]], dma2[ndev]);
288 if (pos < 0) {
289 snd_printk(KERN_ERR "invalid DMA2 %d\n", dma2[ndev]);
290 return -EINVAL;
291 }
292 val |= 0x04; /* enable separate capture DMA */
293 }
294 outb(val, port);
295
296 err = snd_card_create(index[ndev], id[ndev], THIS_MODULE,
297 sizeof(struct snd_cmi8328), &card);
298 if (err < 0)
299 return err;
300 cmi = card->private_data;
301 cmi->card = card;
302 cmi->port = port;
303 cmi->wss_cfg = val;
304 snd_card_set_dev(card, pdev);
305
306 err = snd_wss_create(card, port + 4, -1, irq[ndev], dma1[ndev],
307 dma2[ndev], WSS_HW_DETECT, 0, &cmi->wss);
308 if (err < 0)
309 goto error;
310
311 err = snd_wss_pcm(cmi->wss, 0, NULL);
312 if (err < 0)
313 goto error;
314
315 err = snd_wss_mixer(cmi->wss);
316 if (err < 0)
317 goto error;
318 err = snd_cmi8328_mixer(cmi->wss);
319 if (err < 0)
320 goto error;
321
322 if (snd_wss_timer(cmi->wss, 0, NULL) < 0)
323 snd_printk(KERN_WARNING "error initializing WSS timer\n");
324
325 if (mpuport[ndev] == SNDRV_AUTO_PORT) {
326 mpuport[ndev] = snd_legacy_find_free_ioport(mpu_ports, 2);
327 if (mpuport[ndev] < 0)
328 snd_printk(KERN_ERR "unable to find a free MPU401 port\n");
329 }
330 if (mpuirq[ndev] == SNDRV_AUTO_IRQ) {
331 mpuirq[ndev] = snd_legacy_find_free_irq(mpu_irqs);
332 if (mpuirq[ndev] < 0)
333 snd_printk(KERN_ERR "unable to find a free MPU401 IRQ\n");
334 }
335 /* enable and configure MPU401 */
336 if (mpuport[ndev] > 0 && mpuirq[ndev] > 0) {
337 val = CFG2_MPU_ENABLE;
338 pos = array_find_l(mpu_ports, mpuport[ndev]);
339 if (pos < 0)
340 snd_printk(KERN_WARNING "invalid MPU401 port 0x%lx\n",
341 mpuport[ndev]);
342 else {
343 val |= mpu_port_bits[pos] << 5;
344 pos = array_find(mpu_irqs, mpuirq[ndev]);
345 if (pos < 0)
346 snd_printk(KERN_WARNING "invalid MPU401 IRQ %d\n",
347 mpuirq[ndev]);
348 else {
349 val |= mpu_irq_bits[pos] << 3;
350 snd_cmi8328_cfg_write(port, CFG2, val);
351 if (snd_mpu401_uart_new(card, 0,
352 MPU401_HW_MPU401, mpuport[ndev],
353 0, mpuirq[ndev], NULL) < 0)
354 snd_printk(KERN_ERR "error initializing MPU401\n");
355 }
356 }
357 }
358 /* OPL3 is hardwired to 0x388 and cannot be disabled */
359 if (snd_opl3_create(card, 0x388, 0x38a, OPL3_HW_AUTO, 0, &opl3) < 0)
360 snd_printk(KERN_ERR "error initializing OPL3\n");
361 else
362 if (snd_opl3_hwdep_new(opl3, 0, 1, NULL) < 0)
363 snd_printk(KERN_WARNING "error initializing OPL3 hwdep\n");
364
365 strcpy(card->driver, "CMI8328");
366 strcpy(card->shortname, "C-Media CMI8328");
367 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d,%d",
368 card->shortname, cmi->wss->port, irq[ndev], dma1[ndev],
369 (dma2[ndev] >= 0) ? dma2[ndev] : dma1[ndev]);
370
371 dev_set_drvdata(pdev, card);
372 err = snd_card_register(card);
373 if (err < 0)
374 goto error;
375#ifdef SUPPORT_JOYSTICK
376 if (!gameport[ndev])
377 return 0;
378 /* gameport is hardwired to 0x200 */
379 res = request_region(0x200, 8, "CMI8328 gameport");
380 if (!res)
381 snd_printk(KERN_WARNING "unable to allocate gameport I/O port\n");
382 else {
383 struct gameport *gp = cmi->gameport = gameport_allocate_port();
384 if (!cmi->gameport)
385 release_and_free_resource(res);
386 else {
387 gameport_set_name(gp, "CMI8328 Gameport");
388 gameport_set_phys(gp, "%s/gameport0", dev_name(pdev));
389 gameport_set_dev_parent(gp, pdev);
390 gp->io = 0x200;
391 gameport_set_port_data(gp, res);
392 /* Enable gameport */
393 snd_cmi8328_cfg_write(port, CFG1,
394 CFG1_SB_DISABLE | CFG1_GAMEPORT);
395 gameport_register_port(gp);
396 }
397 }
398#endif
399 return 0;
400error:
401 snd_card_free(card);
402
403 return err;
404}
405
Bill Pemberton1bff2922012-12-06 12:35:21 -0500406static int snd_cmi8328_remove(struct device *pdev, unsigned int dev)
Ondrej Zaryf9933482012-08-20 22:39:51 +0200407{
408 struct snd_card *card = dev_get_drvdata(pdev);
Ondrej Zaryf9933482012-08-20 22:39:51 +0200409 struct snd_cmi8328 *cmi = card->private_data;
Takashi Iwai56244d02012-08-24 07:52:03 +0200410
411#ifdef SUPPORT_JOYSTICK
Ondrej Zaryf9933482012-08-20 22:39:51 +0200412 if (cmi->gameport) {
413 struct resource *res = gameport_get_port_data(cmi->gameport);
414 gameport_unregister_port(cmi->gameport);
415 release_and_free_resource(res);
416 }
417#endif
418 /* disable everything */
419 snd_cmi8328_cfg_write(cmi->port, CFG1, CFG1_SB_DISABLE);
420 snd_cmi8328_cfg_write(cmi->port, CFG2, 0);
421 snd_cmi8328_cfg_write(cmi->port, CFG3, 0);
422 snd_card_free(card);
Ondrej Zaryf9933482012-08-20 22:39:51 +0200423 return 0;
424}
425
426#ifdef CONFIG_PM
427static int snd_cmi8328_suspend(struct device *pdev, unsigned int n,
428 pm_message_t state)
429{
430 struct snd_card *card = dev_get_drvdata(pdev);
431 struct snd_cmi8328 *cmi;
432
433 if (!card) /* ignore absent devices */
434 return 0;
435 cmi = card->private_data;
436 snd_cmi8328_cfg_save(cmi->port, cmi->cfg);
437 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
438 snd_pcm_suspend_all(cmi->wss->pcm);
439 cmi->wss->suspend(cmi->wss);
440
441 return 0;
442}
443
444static int snd_cmi8328_resume(struct device *pdev, unsigned int n)
445{
446 struct snd_card *card = dev_get_drvdata(pdev);
447 struct snd_cmi8328 *cmi;
448
449 if (!card) /* ignore absent devices */
450 return 0;
451 cmi = card->private_data;
452 snd_cmi8328_cfg_restore(cmi->port, cmi->cfg);
453 outb(cmi->wss_cfg, cmi->port);
454 cmi->wss->resume(cmi->wss);
455 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
456
457 return 0;
458}
459#endif
460
461static struct isa_driver snd_cmi8328_driver = {
462 .probe = snd_cmi8328_probe,
Bill Pemberton1bff2922012-12-06 12:35:21 -0500463 .remove = snd_cmi8328_remove,
Ondrej Zaryf9933482012-08-20 22:39:51 +0200464#ifdef CONFIG_PM
465 .suspend = snd_cmi8328_suspend,
466 .resume = snd_cmi8328_resume,
467#endif
468 .driver = {
469 .name = "cmi8328"
470 },
471};
472
473static int __init alsa_card_cmi8328_init(void)
474{
475 return isa_register_driver(&snd_cmi8328_driver, CMI8328_MAX);
476}
477
478static void __exit alsa_card_cmi8328_exit(void)
479{
480 isa_unregister_driver(&snd_cmi8328_driver);
481}
482
483module_init(alsa_card_cmi8328_init)
484module_exit(alsa_card_cmi8328_exit)