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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Driver for Sound Core PDAudioCF soundcard4 *5 * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>6 */7 8#include <sound/core.h>9#include <linux/slab.h>10#include <linux/module.h>11#include <pcmcia/ciscode.h>12#include <pcmcia/cisreg.h>13#include "pdaudiocf.h"14#include <sound/initval.h>15#include <linux/init.h>16 17/*18 */19 20#define CARD_NAME "PDAudio-CF"21 22MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");23MODULE_DESCRIPTION("Sound Core " CARD_NAME);24MODULE_LICENSE("GPL");25 26static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */27static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */28static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */29 30module_param_array(index, int, NULL, 0444);31MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");32module_param_array(id, charp, NULL, 0444);33MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");34module_param_array(enable, bool, NULL, 0444);35MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");36 37/*38 */39 40static struct snd_card *card_list[SNDRV_CARDS];41 42/*43 * prototypes44 */45static int pdacf_config(struct pcmcia_device *link);46static void snd_pdacf_detach(struct pcmcia_device *p_dev);47 48static void pdacf_release(struct pcmcia_device *link)49{50 free_irq(link->irq, link->priv);51 pcmcia_disable_device(link);52}53 54/*55 * destructor56 */57static int snd_pdacf_free(struct snd_pdacf *pdacf)58{59 struct pcmcia_device *link = pdacf->p_dev;60 61 pdacf_release(link);62 63 card_list[pdacf->index] = NULL;64 pdacf->card = NULL;65 66 kfree(pdacf);67 return 0;68}69 70static int snd_pdacf_dev_free(struct snd_device *device)71{72 struct snd_pdacf *chip = device->device_data;73 return snd_pdacf_free(chip);74}75 76/*77 * snd_pdacf_attach - attach callback for cs78 */79static int snd_pdacf_probe(struct pcmcia_device *link)80{81 int i, err;82 struct snd_pdacf *pdacf;83 struct snd_card *card;84 static const struct snd_device_ops ops = {85 .dev_free = snd_pdacf_dev_free,86 };87 88 /* find an empty slot from the card list */89 for (i = 0; i < SNDRV_CARDS; i++) {90 if (! card_list[i])91 break;92 }93 if (i >= SNDRV_CARDS) {94 dev_err(&link->dev, "pdacf: too many cards found\n");95 return -EINVAL;96 }97 if (! enable[i])98 return -ENODEV; /* disabled explicitly */99 100 /* ok, create a card instance */101 err = snd_card_new(&link->dev, index[i], id[i], THIS_MODULE,102 0, &card);103 if (err < 0) {104 dev_err(&link->dev, "pdacf: cannot create a card instance\n");105 return err;106 }107 108 pdacf = snd_pdacf_create(card);109 if (!pdacf) {110 snd_card_free(card);111 return -ENOMEM;112 }113 114 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops);115 if (err < 0) {116 kfree(pdacf);117 snd_card_free(card);118 return err;119 }120 121 pdacf->index = i;122 card_list[i] = card;123 124 pdacf->p_dev = link;125 link->priv = pdacf;126 127 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;128 link->resource[0]->end = 16;129 130 link->config_flags = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;131 link->config_index = 1;132 link->config_regs = PRESENT_OPTION;133 134 return pdacf_config(link);135}136 137 138/**139 * snd_pdacf_assign_resources - initialize the hardware and card instance.140 * @pdacf: context141 * @port: i/o port for the card142 * @irq: irq number for the card143 *144 * this function assigns the specified port and irq, boot the card,145 * create pcm and control instances, and initialize the rest hardware.146 *147 * returns 0 if successful, or a negative error code.148 */149static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq)150{151 int err;152 struct snd_card *card = pdacf->card;153 154 dev_dbg(card->dev, "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq);155 pdacf->port = port;156 pdacf->irq = irq;157 pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED;158 159 err = snd_pdacf_ak4117_create(pdacf);160 if (err < 0)161 return err; 162 163 strcpy(card->driver, "PDAudio-CF");164 sprintf(card->shortname, "Core Sound %s", card->driver);165 sprintf(card->longname, "%s at 0x%x, irq %i",166 card->shortname, port, irq);167 168 err = snd_pdacf_pcm_new(pdacf);169 if (err < 0)170 return err;171 172 err = snd_card_register(card);173 if (err < 0)174 return err;175 176 return 0;177}178 179 180/*181 * snd_pdacf_detach - detach callback for cs182 */183static void snd_pdacf_detach(struct pcmcia_device *link)184{185 struct snd_pdacf *chip = link->priv;186 187 if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED)188 snd_pdacf_powerdown(chip);189 chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */190 snd_card_disconnect(chip->card);191 snd_card_free_when_closed(chip->card);192}193 194/*195 * configuration callback196 */197 198static int pdacf_config(struct pcmcia_device *link)199{200 struct snd_pdacf *pdacf = link->priv;201 int ret;202 203 link->config_index = 0x5;204 link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;205 206 ret = pcmcia_request_io(link);207 if (ret)208 goto failed_preirq;209 210 ret = request_threaded_irq(link->irq, pdacf_interrupt,211 pdacf_threaded_irq,212 IRQF_SHARED, link->devname, link->priv);213 if (ret)214 goto failed_preirq;215 216 ret = pcmcia_enable_device(link);217 if (ret)218 goto failed;219 220 if (snd_pdacf_assign_resources(pdacf, link->resource[0]->start,221 link->irq) < 0)222 goto failed;223 224 pdacf->card->sync_irq = link->irq;225 return 0;226 227 failed:228 free_irq(link->irq, link->priv);229failed_preirq:230 pcmcia_disable_device(link);231 return -ENODEV;232}233 234#ifdef CONFIG_PM235 236static int pdacf_suspend(struct pcmcia_device *link)237{238 struct snd_pdacf *chip = link->priv;239 240 if (chip)241 snd_pdacf_suspend(chip);242 243 return 0;244}245 246static int pdacf_resume(struct pcmcia_device *link)247{248 struct snd_pdacf *chip = link->priv;249 250 if (pcmcia_dev_present(link)) {251 if (chip)252 snd_pdacf_resume(chip);253 }254 255 return 0;256}257 258#endif259 260/*261 * Module entry points262 */263static const struct pcmcia_device_id snd_pdacf_ids[] = {264 /* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */265 PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49),266 PCMCIA_DEVICE_NULL267};268MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids);269 270static struct pcmcia_driver pdacf_cs_driver = {271 .owner = THIS_MODULE,272 .name = "snd-pdaudiocf",273 .probe = snd_pdacf_probe,274 .remove = snd_pdacf_detach,275 .id_table = snd_pdacf_ids,276#ifdef CONFIG_PM277 .suspend = pdacf_suspend,278 .resume = pdacf_resume,279#endif280};281module_pcmcia_driver(pdacf_cs_driver);282