Loading...
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Driver for C-Media CMI8328-based soundcards, such as AudioExcel AV500
4 * Copyright (c) 2012 Ondrej Zary
5 *
6 * AudioExcel AV500 card consists of:
7 * - CMI8328 - main chip (SB Pro emulation, gameport, OPL3, MPU401, CD-ROM)
8 * - CS4231A - WSS codec
9 * - Dream SAM9233+GMS950400+RAM+ROM: Wavetable MIDI, connected to MPU401
10 */
11
12#include <linux/init.h>
13#include <linux/isa.h>
14#include <linux/module.h>
15#include <linux/gameport.h>
16#include <asm/dma.h>
17#include <sound/core.h>
18#include <sound/wss.h>
19#include <sound/opl3.h>
20#include <sound/mpu401.h>
21#define SNDRV_LEGACY_FIND_FREE_IOPORT
22#define SNDRV_LEGACY_FIND_FREE_IRQ
23#define SNDRV_LEGACY_FIND_FREE_DMA
24#include <sound/initval.h>
25
26MODULE_AUTHOR("Ondrej Zary <linux@rainbow-software.org>");
27MODULE_DESCRIPTION("C-Media CMI8328");
28MODULE_LICENSE("GPL");
29
30#if IS_ENABLED(CONFIG_GAMEPORT)
31#define SUPPORT_JOYSTICK 1
32#endif
33
34/* I/O port is configured by jumpers on the card to one of these */
35static const int cmi8328_ports[] = { 0x530, 0xe80, 0xf40, 0x604 };
36#define CMI8328_MAX ARRAY_SIZE(cmi8328_ports)
37
38static int index[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = -1};
39static char *id[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = NULL};
40static long port[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_PORT};
41static int irq[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_IRQ};
42static int dma1[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_DMA};
43static int dma2[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_DMA};
44static long mpuport[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_PORT};
45static int mpuirq[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_IRQ};
46#ifdef SUPPORT_JOYSTICK
47static bool gameport[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = true};
48#endif
49
50module_param_array(index, int, NULL, 0444);
51MODULE_PARM_DESC(index, "Index value for CMI8328 soundcard.");
52module_param_array(id, charp, NULL, 0444);
53MODULE_PARM_DESC(id, "ID string for CMI8328 soundcard.");
54
55module_param_hw_array(port, long, ioport, NULL, 0444);
56MODULE_PARM_DESC(port, "Port # for CMI8328 driver.");
57module_param_hw_array(irq, int, irq, NULL, 0444);
58MODULE_PARM_DESC(irq, "IRQ # for CMI8328 driver.");
59module_param_hw_array(dma1, int, dma, NULL, 0444);
60MODULE_PARM_DESC(dma1, "DMA1 for CMI8328 driver.");
61module_param_hw_array(dma2, int, dma, NULL, 0444);
62MODULE_PARM_DESC(dma2, "DMA2 for CMI8328 driver.");
63
64module_param_hw_array(mpuport, long, ioport, NULL, 0444);
65MODULE_PARM_DESC(mpuport, "MPU-401 port # for CMI8328 driver.");
66module_param_hw_array(mpuirq, int, irq, NULL, 0444);
67MODULE_PARM_DESC(mpuirq, "IRQ # for CMI8328 MPU-401 port.");
68#ifdef SUPPORT_JOYSTICK
69module_param_array(gameport, bool, NULL, 0444);
70MODULE_PARM_DESC(gameport, "Enable gameport.");
71#endif
72
73struct snd_cmi8328 {
74 u16 port;
75 u8 cfg[3];
76 u8 wss_cfg;
77 struct snd_card *card;
78 struct snd_wss *wss;
79#ifdef SUPPORT_JOYSTICK
80 struct gameport *gameport;
81#endif
82};
83
84/* CMI8328 configuration registers */
85#define CFG1 0x61
86#define CFG1_SB_DISABLE (1 << 0)
87#define CFG1_GAMEPORT (1 << 1)
88/*
89 * bit 0: SB: 0=enabled, 1=disabled
90 * bit 1: gameport: 0=disabled, 1=enabled
91 * bits 2-4: SB IRQ: 001=3, 010=5, 011=7, 100=9, 101=10, 110=11
92 * bits 5-6: SB DMA: 00=disabled (when SB disabled), 01=DMA0, 10=DMA1, 11=DMA3
93 * bit 7: SB port: 0=0x220, 1=0x240
94 */
95#define CFG2 0x62
96#define CFG2_MPU_ENABLE (1 << 2)
97/*
98 * bits 0-1: CD-ROM mode: 00=disabled, 01=Panasonic, 10=Sony/Mitsumi/Wearnes,
99 11=IDE
100 * bit 2: MPU401: 0=disabled, 1=enabled
101 * bits 3-4: MPU401 IRQ: 00=3, 01=5, 10=7, 11=9,
102 * bits 5-7: MPU401 port: 000=0x300, 001=0x310, 010=0x320, 011=0x330, 100=0x332,
103 101=0x334, 110=0x336
104 */
105#define CFG3 0x63
106/*
107 * bits 0-2: CD-ROM IRQ: 000=disabled, 001=3, 010=5, 011=7, 100=9, 101=10,
108 110=11
109 * bits 3-4: CD-ROM DMA: 00=disabled, 01=DMA0, 10=DMA1, 11=DMA3
110 * bits 5-7: CD-ROM port: 000=0x300, 001=0x310, 010=0x320, 011=0x330, 100=0x340,
111 101=0x350, 110=0x360, 111=0x370
112 */
113
114static u8 snd_cmi8328_cfg_read(u16 port, u8 reg)
115{
116 outb(0x43, port + 3);
117 outb(0x21, port + 3);
118 outb(reg, port + 3);
119 return inb(port);
120}
121
122static void snd_cmi8328_cfg_write(u16 port, u8 reg, u8 val)
123{
124 outb(0x43, port + 3);
125 outb(0x21, port + 3);
126 outb(reg, port + 3);
127 outb(val, port + 3); /* yes, value goes to the same port as index */
128}
129
130#ifdef CONFIG_PM
131static void snd_cmi8328_cfg_save(u16 port, u8 cfg[])
132{
133 cfg[0] = snd_cmi8328_cfg_read(port, CFG1);
134 cfg[1] = snd_cmi8328_cfg_read(port, CFG2);
135 cfg[2] = snd_cmi8328_cfg_read(port, CFG3);
136}
137
138static void snd_cmi8328_cfg_restore(u16 port, u8 cfg[])
139{
140 snd_cmi8328_cfg_write(port, CFG1, cfg[0]);
141 snd_cmi8328_cfg_write(port, CFG2, cfg[1]);
142 snd_cmi8328_cfg_write(port, CFG3, cfg[2]);
143}
144#endif /* CONFIG_PM */
145
146static int snd_cmi8328_mixer(struct snd_wss *chip)
147{
148 struct snd_card *card;
149 struct snd_ctl_elem_id id1, id2;
150 int err;
151
152 card = chip->card;
153
154 memset(&id1, 0, sizeof(id1));
155 memset(&id2, 0, sizeof(id2));
156 id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
157 /* rename AUX0 switch to CD */
158 strcpy(id1.name, "Aux Playback Switch");
159 strcpy(id2.name, "CD Playback Switch");
160 err = snd_ctl_rename_id(card, &id1, &id2);
161 if (err < 0) {
162 snd_printk(KERN_ERR "error renaming control\n");
163 return err;
164 }
165 /* rename AUX0 volume to CD */
166 strcpy(id1.name, "Aux Playback Volume");
167 strcpy(id2.name, "CD Playback Volume");
168 err = snd_ctl_rename_id(card, &id1, &id2);
169 if (err < 0) {
170 snd_printk(KERN_ERR "error renaming control\n");
171 return err;
172 }
173 /* rename AUX1 switch to Synth */
174 strcpy(id1.name, "Aux Playback Switch");
175 id1.index = 1;
176 strcpy(id2.name, "Synth Playback Switch");
177 err = snd_ctl_rename_id(card, &id1, &id2);
178 if (err < 0) {
179 snd_printk(KERN_ERR "error renaming control\n");
180 return err;
181 }
182 /* rename AUX1 volume to Synth */
183 strcpy(id1.name, "Aux Playback Volume");
184 id1.index = 1;
185 strcpy(id2.name, "Synth Playback Volume");
186 err = snd_ctl_rename_id(card, &id1, &id2);
187 if (err < 0) {
188 snd_printk(KERN_ERR "error renaming control\n");
189 return err;
190 }
191
192 return 0;
193}
194
195/* find index of an item in "-1"-ended array */
196static int array_find(const int array[], int item)
197{
198 int i;
199
200 for (i = 0; array[i] != -1; i++)
201 if (array[i] == item)
202 return i;
203
204 return -1;
205}
206/* the same for long */
207static int array_find_l(const long array[], long item)
208{
209 int i;
210
211 for (i = 0; array[i] != -1; i++)
212 if (array[i] == item)
213 return i;
214
215 return -1;
216}
217
218static int snd_cmi8328_probe(struct device *pdev, unsigned int ndev)
219{
220 struct snd_card *card;
221 struct snd_opl3 *opl3;
222 struct snd_cmi8328 *cmi;
223#ifdef SUPPORT_JOYSTICK
224 struct resource *res;
225#endif
226 int err, pos;
227 static const long mpu_ports[] = { 0x330, 0x300, 0x310, 0x320, 0x332, 0x334,
228 0x336, -1 };
229 static const u8 mpu_port_bits[] = { 3, 0, 1, 2, 4, 5, 6 };
230 static const int mpu_irqs[] = { 9, 7, 5, 3, -1 };
231 static const u8 mpu_irq_bits[] = { 3, 2, 1, 0 };
232 static const int irqs[] = { 9, 10, 11, 7, -1 };
233 static const u8 irq_bits[] = { 2, 3, 4, 1 };
234 static const int dma1s[] = { 3, 1, 0, -1 };
235 static const u8 dma_bits[] = { 3, 2, 1 };
236 static const int dma2s[][2] = { {1, -1}, {0, -1}, {-1, -1}, {0, -1} };
237 u16 port = cmi8328_ports[ndev];
238 u8 val;
239
240 /* 0xff is invalid configuration (but settable - hope it isn't set) */
241 if (snd_cmi8328_cfg_read(port, CFG1) == 0xff)
242 return -ENODEV;
243 /* the SB disable bit must NEVER EVER be cleared or the WSS dies */
244 snd_cmi8328_cfg_write(port, CFG1, CFG1_SB_DISABLE);
245 if (snd_cmi8328_cfg_read(port, CFG1) != CFG1_SB_DISABLE)
246 return -ENODEV;
247 /* disable everything first */
248 snd_cmi8328_cfg_write(port, CFG2, 0); /* disable CDROM and MPU401 */
249 snd_cmi8328_cfg_write(port, CFG3, 0); /* disable CDROM IRQ and DMA */
250
251 if (irq[ndev] == SNDRV_AUTO_IRQ) {
252 irq[ndev] = snd_legacy_find_free_irq(irqs);
253 if (irq[ndev] < 0) {
254 snd_printk(KERN_ERR "unable to find a free IRQ\n");
255 return -EBUSY;
256 }
257 }
258 if (dma1[ndev] == SNDRV_AUTO_DMA) {
259 dma1[ndev] = snd_legacy_find_free_dma(dma1s);
260 if (dma1[ndev] < 0) {
261 snd_printk(KERN_ERR "unable to find a free DMA1\n");
262 return -EBUSY;
263 }
264 }
265 if (dma2[ndev] == SNDRV_AUTO_DMA) {
266 dma2[ndev] = snd_legacy_find_free_dma(dma2s[dma1[ndev] % 4]);
267 if (dma2[ndev] < 0) {
268 snd_printk(KERN_WARNING "unable to find a free DMA2, full-duplex will not work\n");
269 dma2[ndev] = -1;
270 }
271 }
272 /* configure WSS IRQ... */
273 pos = array_find(irqs, irq[ndev]);
274 if (pos < 0) {
275 snd_printk(KERN_ERR "invalid IRQ %d\n", irq[ndev]);
276 return -EINVAL;
277 }
278 val = irq_bits[pos] << 3;
279 /* ...and DMA... */
280 pos = array_find(dma1s, dma1[ndev]);
281 if (pos < 0) {
282 snd_printk(KERN_ERR "invalid DMA1 %d\n", dma1[ndev]);
283 return -EINVAL;
284 }
285 val |= dma_bits[pos];
286 /* ...and DMA2 */
287 if (dma2[ndev] >= 0 && dma1[ndev] != dma2[ndev]) {
288 pos = array_find(dma2s[dma1[ndev]], dma2[ndev]);
289 if (pos < 0) {
290 snd_printk(KERN_ERR "invalid DMA2 %d\n", dma2[ndev]);
291 return -EINVAL;
292 }
293 val |= 0x04; /* enable separate capture DMA */
294 }
295 outb(val, port);
296
297 err = snd_devm_card_new(pdev, index[ndev], id[ndev], THIS_MODULE,
298 sizeof(struct snd_cmi8328), &card);
299 if (err < 0)
300 return err;
301 cmi = card->private_data;
302 cmi->card = card;
303 cmi->port = port;
304 cmi->wss_cfg = val;
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 return err;
310
311 err = snd_wss_pcm(cmi->wss, 0);
312 if (err < 0)
313 return err;
314
315 err = snd_wss_mixer(cmi->wss);
316 if (err < 0)
317 return err;
318 err = snd_cmi8328_mixer(cmi->wss);
319 if (err < 0)
320 return err;
321
322 if (snd_wss_timer(cmi->wss, 0) < 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 return err;
375#ifdef SUPPORT_JOYSTICK
376 if (!gameport[ndev])
377 return 0;
378 /* gameport is hardwired to 0x200 */
379 res = devm_request_region(pdev, 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 gameport_set_name(gp, "CMI8328 Gameport");
386 gameport_set_phys(gp, "%s/gameport0", dev_name(pdev));
387 gameport_set_dev_parent(gp, pdev);
388 gp->io = 0x200;
389 /* Enable gameport */
390 snd_cmi8328_cfg_write(port, CFG1,
391 CFG1_SB_DISABLE | CFG1_GAMEPORT);
392 gameport_register_port(gp);
393 }
394 }
395#endif
396 return 0;
397}
398
399static void snd_cmi8328_remove(struct device *pdev, unsigned int dev)
400{
401 struct snd_card *card = dev_get_drvdata(pdev);
402 struct snd_cmi8328 *cmi = card->private_data;
403
404#ifdef SUPPORT_JOYSTICK
405 if (cmi->gameport)
406 gameport_unregister_port(cmi->gameport);
407#endif
408 /* disable everything */
409 snd_cmi8328_cfg_write(cmi->port, CFG1, CFG1_SB_DISABLE);
410 snd_cmi8328_cfg_write(cmi->port, CFG2, 0);
411 snd_cmi8328_cfg_write(cmi->port, CFG3, 0);
412}
413
414#ifdef CONFIG_PM
415static int snd_cmi8328_suspend(struct device *pdev, unsigned int n,
416 pm_message_t state)
417{
418 struct snd_card *card = dev_get_drvdata(pdev);
419 struct snd_cmi8328 *cmi;
420
421 if (!card) /* ignore absent devices */
422 return 0;
423 cmi = card->private_data;
424 snd_cmi8328_cfg_save(cmi->port, cmi->cfg);
425 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
426 cmi->wss->suspend(cmi->wss);
427
428 return 0;
429}
430
431static int snd_cmi8328_resume(struct device *pdev, unsigned int n)
432{
433 struct snd_card *card = dev_get_drvdata(pdev);
434 struct snd_cmi8328 *cmi;
435
436 if (!card) /* ignore absent devices */
437 return 0;
438 cmi = card->private_data;
439 snd_cmi8328_cfg_restore(cmi->port, cmi->cfg);
440 outb(cmi->wss_cfg, cmi->port);
441 cmi->wss->resume(cmi->wss);
442 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
443
444 return 0;
445}
446#endif
447
448static struct isa_driver snd_cmi8328_driver = {
449 .probe = snd_cmi8328_probe,
450 .remove = snd_cmi8328_remove,
451#ifdef CONFIG_PM
452 .suspend = snd_cmi8328_suspend,
453 .resume = snd_cmi8328_resume,
454#endif
455 .driver = {
456 .name = "cmi8328"
457 },
458};
459
460module_isa_driver(snd_cmi8328_driver, CMI8328_MAX);
1/*
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
129#ifdef CONFIG_PM
130static 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}
143#endif /* CONFIG_PM */
144
145static int snd_cmi8328_mixer(struct snd_wss *chip)
146{
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
217static int snd_cmi8328_probe(struct device *pdev, unsigned int ndev)
218{
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_new(pdev, 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
305 err = snd_wss_create(card, port + 4, -1, irq[ndev], dma1[ndev],
306 dma2[ndev], WSS_HW_DETECT, 0, &cmi->wss);
307 if (err < 0)
308 goto error;
309
310 err = snd_wss_pcm(cmi->wss, 0);
311 if (err < 0)
312 goto error;
313
314 err = snd_wss_mixer(cmi->wss);
315 if (err < 0)
316 goto error;
317 err = snd_cmi8328_mixer(cmi->wss);
318 if (err < 0)
319 goto error;
320
321 if (snd_wss_timer(cmi->wss, 0) < 0)
322 snd_printk(KERN_WARNING "error initializing WSS timer\n");
323
324 if (mpuport[ndev] == SNDRV_AUTO_PORT) {
325 mpuport[ndev] = snd_legacy_find_free_ioport(mpu_ports, 2);
326 if (mpuport[ndev] < 0)
327 snd_printk(KERN_ERR "unable to find a free MPU401 port\n");
328 }
329 if (mpuirq[ndev] == SNDRV_AUTO_IRQ) {
330 mpuirq[ndev] = snd_legacy_find_free_irq(mpu_irqs);
331 if (mpuirq[ndev] < 0)
332 snd_printk(KERN_ERR "unable to find a free MPU401 IRQ\n");
333 }
334 /* enable and configure MPU401 */
335 if (mpuport[ndev] > 0 && mpuirq[ndev] > 0) {
336 val = CFG2_MPU_ENABLE;
337 pos = array_find_l(mpu_ports, mpuport[ndev]);
338 if (pos < 0)
339 snd_printk(KERN_WARNING "invalid MPU401 port 0x%lx\n",
340 mpuport[ndev]);
341 else {
342 val |= mpu_port_bits[pos] << 5;
343 pos = array_find(mpu_irqs, mpuirq[ndev]);
344 if (pos < 0)
345 snd_printk(KERN_WARNING "invalid MPU401 IRQ %d\n",
346 mpuirq[ndev]);
347 else {
348 val |= mpu_irq_bits[pos] << 3;
349 snd_cmi8328_cfg_write(port, CFG2, val);
350 if (snd_mpu401_uart_new(card, 0,
351 MPU401_HW_MPU401, mpuport[ndev],
352 0, mpuirq[ndev], NULL) < 0)
353 snd_printk(KERN_ERR "error initializing MPU401\n");
354 }
355 }
356 }
357 /* OPL3 is hardwired to 0x388 and cannot be disabled */
358 if (snd_opl3_create(card, 0x388, 0x38a, OPL3_HW_AUTO, 0, &opl3) < 0)
359 snd_printk(KERN_ERR "error initializing OPL3\n");
360 else
361 if (snd_opl3_hwdep_new(opl3, 0, 1, NULL) < 0)
362 snd_printk(KERN_WARNING "error initializing OPL3 hwdep\n");
363
364 strcpy(card->driver, "CMI8328");
365 strcpy(card->shortname, "C-Media CMI8328");
366 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d,%d",
367 card->shortname, cmi->wss->port, irq[ndev], dma1[ndev],
368 (dma2[ndev] >= 0) ? dma2[ndev] : dma1[ndev]);
369
370 dev_set_drvdata(pdev, card);
371 err = snd_card_register(card);
372 if (err < 0)
373 goto error;
374#ifdef SUPPORT_JOYSTICK
375 if (!gameport[ndev])
376 return 0;
377 /* gameport is hardwired to 0x200 */
378 res = request_region(0x200, 8, "CMI8328 gameport");
379 if (!res)
380 snd_printk(KERN_WARNING "unable to allocate gameport I/O port\n");
381 else {
382 struct gameport *gp = cmi->gameport = gameport_allocate_port();
383 if (!cmi->gameport)
384 release_and_free_resource(res);
385 else {
386 gameport_set_name(gp, "CMI8328 Gameport");
387 gameport_set_phys(gp, "%s/gameport0", dev_name(pdev));
388 gameport_set_dev_parent(gp, pdev);
389 gp->io = 0x200;
390 gameport_set_port_data(gp, res);
391 /* Enable gameport */
392 snd_cmi8328_cfg_write(port, CFG1,
393 CFG1_SB_DISABLE | CFG1_GAMEPORT);
394 gameport_register_port(gp);
395 }
396 }
397#endif
398 return 0;
399error:
400 snd_card_free(card);
401
402 return err;
403}
404
405static int snd_cmi8328_remove(struct device *pdev, unsigned int dev)
406{
407 struct snd_card *card = dev_get_drvdata(pdev);
408 struct snd_cmi8328 *cmi = card->private_data;
409
410#ifdef SUPPORT_JOYSTICK
411 if (cmi->gameport) {
412 struct resource *res = gameport_get_port_data(cmi->gameport);
413 gameport_unregister_port(cmi->gameport);
414 release_and_free_resource(res);
415 }
416#endif
417 /* disable everything */
418 snd_cmi8328_cfg_write(cmi->port, CFG1, CFG1_SB_DISABLE);
419 snd_cmi8328_cfg_write(cmi->port, CFG2, 0);
420 snd_cmi8328_cfg_write(cmi->port, CFG3, 0);
421 snd_card_free(card);
422 return 0;
423}
424
425#ifdef CONFIG_PM
426static int snd_cmi8328_suspend(struct device *pdev, unsigned int n,
427 pm_message_t state)
428{
429 struct snd_card *card = dev_get_drvdata(pdev);
430 struct snd_cmi8328 *cmi;
431
432 if (!card) /* ignore absent devices */
433 return 0;
434 cmi = card->private_data;
435 snd_cmi8328_cfg_save(cmi->port, cmi->cfg);
436 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
437 snd_pcm_suspend_all(cmi->wss->pcm);
438 cmi->wss->suspend(cmi->wss);
439
440 return 0;
441}
442
443static int snd_cmi8328_resume(struct device *pdev, unsigned int n)
444{
445 struct snd_card *card = dev_get_drvdata(pdev);
446 struct snd_cmi8328 *cmi;
447
448 if (!card) /* ignore absent devices */
449 return 0;
450 cmi = card->private_data;
451 snd_cmi8328_cfg_restore(cmi->port, cmi->cfg);
452 outb(cmi->wss_cfg, cmi->port);
453 cmi->wss->resume(cmi->wss);
454 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
455
456 return 0;
457}
458#endif
459
460static struct isa_driver snd_cmi8328_driver = {
461 .probe = snd_cmi8328_probe,
462 .remove = snd_cmi8328_remove,
463#ifdef CONFIG_PM
464 .suspend = snd_cmi8328_suspend,
465 .resume = snd_cmi8328_resume,
466#endif
467 .driver = {
468 .name = "cmi8328"
469 },
470};
471
472static int __init alsa_card_cmi8328_init(void)
473{
474 return isa_register_driver(&snd_cmi8328_driver, CMI8328_MAX);
475}
476
477static void __exit alsa_card_cmi8328_exit(void)
478{
479 isa_unregister_driver(&snd_cmi8328_driver);
480}
481
482module_init(alsa_card_cmi8328_init)
483module_exit(alsa_card_cmi8328_exit)