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Linux/sound/isa/es1688/es1688.c

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  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  *  Driver for generic ESS AudioDrive ESx688 soundcards
  4  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  5  */
  6 
  7 #include <linux/init.h>
  8 #include <linux/err.h>
  9 #include <linux/isa.h>
 10 #include <linux/isapnp.h>
 11 #include <linux/time.h>
 12 #include <linux/wait.h>
 13 #include <linux/module.h>
 14 #include <asm/dma.h>
 15 #include <sound/core.h>
 16 #include <sound/es1688.h>
 17 #include <sound/mpu401.h>
 18 #include <sound/opl3.h>
 19 #define SNDRV_LEGACY_FIND_FREE_IRQ
 20 #define SNDRV_LEGACY_FIND_FREE_DMA
 21 #include <sound/initval.h>
 22 
 23 #define CRD_NAME "Generic ESS ES1688/ES688 AudioDrive"
 24 #define DEV_NAME "es1688"
 25 
 26 MODULE_DESCRIPTION(CRD_NAME);
 27 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 28 MODULE_LICENSE("GPL");
 29 MODULE_ALIAS("snd_es968");
 30 
 31 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
 32 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
 33 #ifdef CONFIG_PNP
 34 static bool isapnp[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP;
 35 #endif
 36 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
 37 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260 */
 38 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;  /* Usually 0x388 */
 39 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
 40 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
 41 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;    /* 5,7,9,10 */
 42 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
 43 
 44 module_param_array(index, int, NULL, 0444);
 45 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
 46 module_param_array(id, charp, NULL, 0444);
 47 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
 48 module_param_array(enable, bool, NULL, 0444);
 49 #ifdef CONFIG_PNP
 50 module_param_array(isapnp, bool, NULL, 0444);
 51 MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
 52 #endif
 53 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
 54 module_param_hw_array(port, long, ioport, NULL, 0444);
 55 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
 56 module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
 57 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
 58 module_param_hw_array(irq, int, irq, NULL, 0444);
 59 module_param_hw_array(fm_port, long, ioport, NULL, 0444);
 60 MODULE_PARM_DESC(fm_port, "FM port # for ES1688 driver.");
 61 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
 62 module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
 63 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
 64 module_param_hw_array(dma8, int, dma, NULL, 0444);
 65 MODULE_PARM_DESC(dma8, "8-bit DMA # for " CRD_NAME " driver.");
 66 
 67 #ifdef CONFIG_PNP
 68 #define is_isapnp_selected(dev)         isapnp[dev]
 69 #else
 70 #define is_isapnp_selected(dev)         0
 71 #endif
 72 
 73 static int snd_es1688_match(struct device *dev, unsigned int n)
 74 {
 75         return enable[n] && !is_isapnp_selected(n);
 76 }
 77 
 78 static int snd_es1688_legacy_create(struct snd_card *card,
 79                                     struct device *dev, unsigned int n)
 80 {
 81         struct snd_es1688 *chip = card->private_data;
 82         static const long possible_ports[] = {0x220, 0x240, 0x260};
 83         static const int possible_irqs[] = {5, 9, 10, 7, -1};
 84         static const int possible_dmas[] = {1, 3, 0, -1};
 85 
 86         int i, error;
 87 
 88         if (irq[n] == SNDRV_AUTO_IRQ) {
 89                 irq[n] = snd_legacy_find_free_irq(possible_irqs);
 90                 if (irq[n] < 0) {
 91                         dev_err(dev, "unable to find a free IRQ\n");
 92                         return -EBUSY;
 93                 }
 94         }
 95         if (dma8[n] == SNDRV_AUTO_DMA) {
 96                 dma8[n] = snd_legacy_find_free_dma(possible_dmas);
 97                 if (dma8[n] < 0) {
 98                         dev_err(dev, "unable to find a free DMA\n");
 99                         return -EBUSY;
100                 }
101         }
102 
103         if (port[n] != SNDRV_AUTO_PORT)
104                 return snd_es1688_create(card, chip, port[n], mpu_port[n],
105                                 irq[n], mpu_irq[n], dma8[n], ES1688_HW_AUTO);
106 
107         i = 0;
108         do {
109                 port[n] = possible_ports[i];
110                 error = snd_es1688_create(card, chip, port[n], mpu_port[n],
111                                 irq[n], mpu_irq[n], dma8[n], ES1688_HW_AUTO);
112         } while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
113 
114         return error;
115 }
116 
117 static int snd_es1688_probe(struct snd_card *card, unsigned int n)
118 {
119         struct snd_es1688 *chip = card->private_data;
120         struct snd_opl3 *opl3;
121         int error;
122 
123         error = snd_es1688_pcm(card, chip, 0);
124         if (error < 0)
125                 return error;
126 
127         error = snd_es1688_mixer(card, chip);
128         if (error < 0)
129                 return error;
130 
131         strscpy(card->driver, "ES1688", sizeof(card->driver));
132         strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
133         scnprintf(card->longname, sizeof(card->longname),
134                   "%s at 0x%lx, irq %i, dma %i", chip->pcm->name, chip->port,
135                   chip->irq, chip->dma8);
136 
137         if (fm_port[n] == SNDRV_AUTO_PORT)
138                 fm_port[n] = port[n];   /* share the same port */
139 
140         if (fm_port[n] > 0) {
141                 if (snd_opl3_create(card, fm_port[n], fm_port[n] + 2,
142                                 OPL3_HW_OPL3, 0, &opl3) < 0)
143                         dev_warn(card->dev,
144                                  "opl3 not detected at 0x%lx\n", fm_port[n]);
145                 else {
146                         error = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
147                         if (error < 0)
148                                 return error;
149                 }
150         }
151 
152         if (mpu_irq[n] >= 0 && mpu_irq[n] != SNDRV_AUTO_IRQ &&
153                         chip->mpu_port > 0) {
154                 error = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688,
155                                 chip->mpu_port, 0,
156                                 mpu_irq[n], NULL);
157                 if (error < 0)
158                         return error;
159         }
160 
161         return snd_card_register(card);
162 }
163 
164 static int snd_es1688_isa_probe(struct device *dev, unsigned int n)
165 {
166         struct snd_card *card;
167         int error;
168 
169         error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE,
170                                   sizeof(struct snd_es1688), &card);
171         if (error < 0)
172                 return error;
173 
174         error = snd_es1688_legacy_create(card, dev, n);
175         if (error < 0)
176                 return error;
177 
178         error = snd_es1688_probe(card, n);
179         if (error < 0)
180                 return error;
181 
182         dev_set_drvdata(dev, card);
183 
184         return 0;
185 }
186 
187 static struct isa_driver snd_es1688_driver = {
188         .match          = snd_es1688_match,
189         .probe          = snd_es1688_isa_probe,
190 #if 0   /* FIXME */
191         .suspend        = snd_es1688_suspend,
192         .resume         = snd_es1688_resume,
193 #endif
194         .driver         = {
195                 .name   = DEV_NAME
196         }
197 };
198 
199 static int snd_es968_pnp_is_probed;
200 
201 #ifdef CONFIG_PNP
202 static int snd_card_es968_pnp(struct snd_card *card, unsigned int n,
203                               struct pnp_card_link *pcard,
204                               const struct pnp_card_device_id *pid)
205 {
206         struct snd_es1688 *chip = card->private_data;
207         struct pnp_dev *pdev;
208         int error;
209 
210         pdev = pnp_request_card_device(pcard, pid->devs[0].id, NULL);
211         if (pdev == NULL)
212                 return -ENODEV;
213 
214         error = pnp_activate_dev(pdev);
215         if (error < 0) {
216                 snd_printk(KERN_ERR "ES968 pnp configure failure\n");
217                 return error;
218         }
219         port[n] = pnp_port_start(pdev, 0);
220         dma8[n] = pnp_dma(pdev, 0);
221         irq[n] = pnp_irq(pdev, 0);
222 
223         return snd_es1688_create(card, chip, port[n], mpu_port[n], irq[n],
224                                  mpu_irq[n], dma8[n], ES1688_HW_AUTO);
225 }
226 
227 static int snd_es968_pnp_detect(struct pnp_card_link *pcard,
228                                 const struct pnp_card_device_id *pid)
229 {
230         struct snd_card *card;
231         static unsigned int dev;
232         int error;
233 
234         if (snd_es968_pnp_is_probed)
235                 return -EBUSY;
236         for ( ; dev < SNDRV_CARDS; dev++) {
237                 if (enable[dev] && isapnp[dev])
238                         break;
239         }
240         if (dev == SNDRV_CARDS)
241                 return -ENODEV;
242 
243         error = snd_devm_card_new(&pcard->card->dev,
244                                   index[dev], id[dev], THIS_MODULE,
245                                   sizeof(struct snd_es1688), &card);
246         if (error < 0)
247                 return error;
248 
249         error = snd_card_es968_pnp(card, dev, pcard, pid);
250         if (error < 0)
251                 return error;
252         error = snd_es1688_probe(card, dev);
253         if (error < 0)
254                 return error;
255         pnp_set_card_drvdata(pcard, card);
256         snd_es968_pnp_is_probed = 1;
257         return 0;
258 }
259 
260 static void snd_es968_pnp_remove(struct pnp_card_link *pcard)
261 {
262         snd_es968_pnp_is_probed = 0;
263 }
264 
265 #ifdef CONFIG_PM
266 static int snd_es968_pnp_suspend(struct pnp_card_link *pcard,
267                                  pm_message_t state)
268 {
269         struct snd_card *card = pnp_get_card_drvdata(pcard);
270 
271         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
272         return 0;
273 }
274 
275 static int snd_es968_pnp_resume(struct pnp_card_link *pcard)
276 {
277         struct snd_card *card = pnp_get_card_drvdata(pcard);
278         struct snd_es1688 *chip = card->private_data;
279 
280         snd_es1688_reset(chip);
281         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
282         return 0;
283 }
284 #endif
285 
286 static const struct pnp_card_device_id snd_es968_pnpids[] = {
287         { .id = "ESS0968", .devs = { { "@@@0968" }, } },
288         { .id = "ESS0968", .devs = { { "ESS0968" }, } },
289         { .id = "", } /* end */
290 };
291 
292 MODULE_DEVICE_TABLE(pnp_card, snd_es968_pnpids);
293 
294 static struct pnp_card_driver es968_pnpc_driver = {
295         .flags          = PNP_DRIVER_RES_DISABLE,
296         .name           = DEV_NAME " PnP",
297         .id_table       = snd_es968_pnpids,
298         .probe          = snd_es968_pnp_detect,
299         .remove         = snd_es968_pnp_remove,
300 #ifdef CONFIG_PM
301         .suspend        = snd_es968_pnp_suspend,
302         .resume         = snd_es968_pnp_resume,
303 #endif
304 };
305 #endif
306 
307 static int __init alsa_card_es1688_init(void)
308 {
309 #ifdef CONFIG_PNP
310         pnp_register_card_driver(&es968_pnpc_driver);
311         if (snd_es968_pnp_is_probed)
312                 return 0;
313         pnp_unregister_card_driver(&es968_pnpc_driver);
314 #endif
315         return isa_register_driver(&snd_es1688_driver, SNDRV_CARDS);
316 }
317 
318 static void __exit alsa_card_es1688_exit(void)
319 {
320         if (!snd_es968_pnp_is_probed) {
321                 isa_unregister_driver(&snd_es1688_driver);
322                 return;
323         }
324 #ifdef CONFIG_PNP
325         pnp_unregister_card_driver(&es968_pnpc_driver);
326 #endif
327 }
328 
329 module_init(alsa_card_es1688_init);
330 module_exit(alsa_card_es1688_exit);
331 

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