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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_SUPPORTED_DEVICE("{{ESS,ES688 PnP AudioDrive,pnp:ESS0100},"
 30                 "{ESS,ES1688 PnP AudioDrive,pnp:ESS0102},"
 31                 "{ESS,ES688 AudioDrive,pnp:ESS6881},"
 32                 "{ESS,ES1688 AudioDrive,pnp:ESS1681}}");
 33 
 34 MODULE_ALIAS("snd_es968");
 35 
 36 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
 37 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
 38 #ifdef CONFIG_PNP
 39 static bool isapnp[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP;
 40 #endif
 41 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
 42 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260 */
 43 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;  /* Usually 0x388 */
 44 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
 45 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
 46 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;    /* 5,7,9,10 */
 47 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
 48 
 49 module_param_array(index, int, NULL, 0444);
 50 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
 51 module_param_array(id, charp, NULL, 0444);
 52 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
 53 module_param_array(enable, bool, NULL, 0444);
 54 #ifdef CONFIG_PNP
 55 module_param_array(isapnp, bool, NULL, 0444);
 56 MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
 57 #endif
 58 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
 59 module_param_hw_array(port, long, ioport, NULL, 0444);
 60 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
 61 module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
 62 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
 63 module_param_hw_array(irq, int, irq, NULL, 0444);
 64 module_param_hw_array(fm_port, long, ioport, NULL, 0444);
 65 MODULE_PARM_DESC(fm_port, "FM port # for ES1688 driver.");
 66 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
 67 module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
 68 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
 69 module_param_hw_array(dma8, int, dma, NULL, 0444);
 70 MODULE_PARM_DESC(dma8, "8-bit DMA # for " CRD_NAME " driver.");
 71 
 72 #ifdef CONFIG_PNP
 73 #define is_isapnp_selected(dev)         isapnp[dev]
 74 #else
 75 #define is_isapnp_selected(dev)         0
 76 #endif
 77 
 78 static int snd_es1688_match(struct device *dev, unsigned int n)
 79 {
 80         return enable[n] && !is_isapnp_selected(n);
 81 }
 82 
 83 static int snd_es1688_legacy_create(struct snd_card *card,
 84                                     struct device *dev, unsigned int n)
 85 {
 86         struct snd_es1688 *chip = card->private_data;
 87         static long possible_ports[] = {0x220, 0x240, 0x260};
 88         static int possible_irqs[] = {5, 9, 10, 7, -1};
 89         static int possible_dmas[] = {1, 3, 0, -1};
 90 
 91         int i, error;
 92 
 93         if (irq[n] == SNDRV_AUTO_IRQ) {
 94                 irq[n] = snd_legacy_find_free_irq(possible_irqs);
 95                 if (irq[n] < 0) {
 96                         dev_err(dev, "unable to find a free IRQ\n");
 97                         return -EBUSY;
 98                 }
 99         }
100         if (dma8[n] == SNDRV_AUTO_DMA) {
101                 dma8[n] = snd_legacy_find_free_dma(possible_dmas);
102                 if (dma8[n] < 0) {
103                         dev_err(dev, "unable to find a free DMA\n");
104                         return -EBUSY;
105                 }
106         }
107 
108         if (port[n] != SNDRV_AUTO_PORT)
109                 return snd_es1688_create(card, chip, port[n], mpu_port[n],
110                                 irq[n], mpu_irq[n], dma8[n], ES1688_HW_AUTO);
111 
112         i = 0;
113         do {
114                 port[n] = possible_ports[i];
115                 error = snd_es1688_create(card, chip, port[n], mpu_port[n],
116                                 irq[n], mpu_irq[n], dma8[n], ES1688_HW_AUTO);
117         } while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
118 
119         return error;
120 }
121 
122 static int snd_es1688_probe(struct snd_card *card, unsigned int n)
123 {
124         struct snd_es1688 *chip = card->private_data;
125         struct snd_opl3 *opl3;
126         int error;
127 
128         error = snd_es1688_pcm(card, chip, 0);
129         if (error < 0)
130                 return error;
131 
132         error = snd_es1688_mixer(card, chip);
133         if (error < 0)
134                 return error;
135 
136         strlcpy(card->driver, "ES1688", sizeof(card->driver));
137         strlcpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
138         snprintf(card->longname, sizeof(card->longname),
139                 "%s at 0x%lx, irq %i, dma %i", chip->pcm->name, chip->port,
140                  chip->irq, chip->dma8);
141 
142         if (fm_port[n] == SNDRV_AUTO_PORT)
143                 fm_port[n] = port[n];   /* share the same port */
144 
145         if (fm_port[n] > 0) {
146                 if (snd_opl3_create(card, fm_port[n], fm_port[n] + 2,
147                                 OPL3_HW_OPL3, 0, &opl3) < 0)
148                         dev_warn(card->dev,
149                                  "opl3 not detected at 0x%lx\n", fm_port[n]);
150                 else {
151                         error = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
152                         if (error < 0)
153                                 return error;
154                 }
155         }
156 
157         if (mpu_irq[n] >= 0 && mpu_irq[n] != SNDRV_AUTO_IRQ &&
158                         chip->mpu_port > 0) {
159                 error = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688,
160                                 chip->mpu_port, 0,
161                                 mpu_irq[n], NULL);
162                 if (error < 0)
163                         return error;
164         }
165 
166         return snd_card_register(card);
167 }
168 
169 static int snd_es1688_isa_probe(struct device *dev, unsigned int n)
170 {
171         struct snd_card *card;
172         int error;
173 
174         error = snd_card_new(dev, index[n], id[n], THIS_MODULE,
175                              sizeof(struct snd_es1688), &card);
176         if (error < 0)
177                 return error;
178 
179         error = snd_es1688_legacy_create(card, dev, n);
180         if (error < 0)
181                 goto out;
182 
183         error = snd_es1688_probe(card, n);
184         if (error < 0)
185                 goto out;
186 
187         dev_set_drvdata(dev, card);
188 
189         return 0;
190 out:
191         snd_card_free(card);
192         return error;
193 }
194 
195 static int snd_es1688_isa_remove(struct device *dev, unsigned int n)
196 {
197         snd_card_free(dev_get_drvdata(dev));
198         return 0;
199 }
200 
201 static struct isa_driver snd_es1688_driver = {
202         .match          = snd_es1688_match,
203         .probe          = snd_es1688_isa_probe,
204         .remove         = snd_es1688_isa_remove,
205 #if 0   /* FIXME */
206         .suspend        = snd_es1688_suspend,
207         .resume         = snd_es1688_resume,
208 #endif
209         .driver         = {
210                 .name   = DEV_NAME
211         }
212 };
213 
214 static int snd_es968_pnp_is_probed;
215 
216 #ifdef CONFIG_PNP
217 static int snd_card_es968_pnp(struct snd_card *card, unsigned int n,
218                               struct pnp_card_link *pcard,
219                               const struct pnp_card_device_id *pid)
220 {
221         struct snd_es1688 *chip = card->private_data;
222         struct pnp_dev *pdev;
223         int error;
224 
225         pdev = pnp_request_card_device(pcard, pid->devs[0].id, NULL);
226         if (pdev == NULL)
227                 return -ENODEV;
228 
229         error = pnp_activate_dev(pdev);
230         if (error < 0) {
231                 snd_printk(KERN_ERR "ES968 pnp configure failure\n");
232                 return error;
233         }
234         port[n] = pnp_port_start(pdev, 0);
235         dma8[n] = pnp_dma(pdev, 0);
236         irq[n] = pnp_irq(pdev, 0);
237 
238         return snd_es1688_create(card, chip, port[n], mpu_port[n], irq[n],
239                                  mpu_irq[n], dma8[n], ES1688_HW_AUTO);
240 }
241 
242 static int snd_es968_pnp_detect(struct pnp_card_link *pcard,
243                                 const struct pnp_card_device_id *pid)
244 {
245         struct snd_card *card;
246         static unsigned int dev;
247         int error;
248 
249         if (snd_es968_pnp_is_probed)
250                 return -EBUSY;
251         for ( ; dev < SNDRV_CARDS; dev++) {
252                 if (enable[dev] && isapnp[dev])
253                         break;
254         }
255         if (dev == SNDRV_CARDS)
256                 return -ENODEV;
257 
258         error = snd_card_new(&pcard->card->dev,
259                              index[dev], id[dev], THIS_MODULE,
260                              sizeof(struct snd_es1688), &card);
261         if (error < 0)
262                 return error;
263 
264         error = snd_card_es968_pnp(card, dev, pcard, pid);
265         if (error < 0) {
266                 snd_card_free(card);
267                 return error;
268         }
269         error = snd_es1688_probe(card, dev);
270         if (error < 0)
271                 return error;
272         pnp_set_card_drvdata(pcard, card);
273         snd_es968_pnp_is_probed = 1;
274         return 0;
275 }
276 
277 static void snd_es968_pnp_remove(struct pnp_card_link *pcard)
278 {
279         snd_card_free(pnp_get_card_drvdata(pcard));
280         pnp_set_card_drvdata(pcard, NULL);
281         snd_es968_pnp_is_probed = 0;
282 }
283 
284 #ifdef CONFIG_PM
285 static int snd_es968_pnp_suspend(struct pnp_card_link *pcard,
286                                  pm_message_t state)
287 {
288         struct snd_card *card = pnp_get_card_drvdata(pcard);
289 
290         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
291         return 0;
292 }
293 
294 static int snd_es968_pnp_resume(struct pnp_card_link *pcard)
295 {
296         struct snd_card *card = pnp_get_card_drvdata(pcard);
297         struct snd_es1688 *chip = card->private_data;
298 
299         snd_es1688_reset(chip);
300         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
301         return 0;
302 }
303 #endif
304 
305 static const struct pnp_card_device_id snd_es968_pnpids[] = {
306         { .id = "ESS0968", .devs = { { "@@@0968" }, } },
307         { .id = "ESS0968", .devs = { { "ESS0968" }, } },
308         { .id = "", } /* end */
309 };
310 
311 MODULE_DEVICE_TABLE(pnp_card, snd_es968_pnpids);
312 
313 static struct pnp_card_driver es968_pnpc_driver = {
314         .flags          = PNP_DRIVER_RES_DISABLE,
315         .name           = DEV_NAME " PnP",
316         .id_table       = snd_es968_pnpids,
317         .probe          = snd_es968_pnp_detect,
318         .remove         = snd_es968_pnp_remove,
319 #ifdef CONFIG_PM
320         .suspend        = snd_es968_pnp_suspend,
321         .resume         = snd_es968_pnp_resume,
322 #endif
323 };
324 #endif
325 
326 static int __init alsa_card_es1688_init(void)
327 {
328 #ifdef CONFIG_PNP
329         pnp_register_card_driver(&es968_pnpc_driver);
330         if (snd_es968_pnp_is_probed)
331                 return 0;
332         pnp_unregister_card_driver(&es968_pnpc_driver);
333 #endif
334         return isa_register_driver(&snd_es1688_driver, SNDRV_CARDS);
335 }
336 
337 static void __exit alsa_card_es1688_exit(void)
338 {
339         if (!snd_es968_pnp_is_probed) {
340                 isa_unregister_driver(&snd_es1688_driver);
341                 return;
342         }
343 #ifdef CONFIG_PNP
344         pnp_unregister_card_driver(&es968_pnpc_driver);
345 #endif
346 }
347 
348 module_init(alsa_card_es1688_init);
349 module_exit(alsa_card_es1688_exit);
350 

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