1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Driver for Sound Core PDAudioCF soundcard 4 * 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 22 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 23 MODULE_DESCRIPTION("Sound Core " CARD_NAME); 24 MODULE_LICENSE("GPL"); 25 MODULE_SUPPORTED_DEVICE("{{Sound Core," CARD_NAME "}}"); 26 27 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 28 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 29 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */ 30 31 module_param_array(index, int, NULL, 0444); 32 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); 33 module_param_array(id, charp, NULL, 0444); 34 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); 35 module_param_array(enable, bool, NULL, 0444); 36 MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); 37 38 /* 39 */ 40 41 static struct snd_card *card_list[SNDRV_CARDS]; 42 43 /* 44 * prototypes 45 */ 46 static int pdacf_config(struct pcmcia_device *link); 47 static void snd_pdacf_detach(struct pcmcia_device *p_dev); 48 49 static void pdacf_release(struct pcmcia_device *link) 50 { 51 free_irq(link->irq, link->priv); 52 pcmcia_disable_device(link); 53 } 54 55 /* 56 * destructor 57 */ 58 static int snd_pdacf_free(struct snd_pdacf *pdacf) 59 { 60 struct pcmcia_device *link = pdacf->p_dev; 61 62 pdacf_release(link); 63 64 card_list[pdacf->index] = NULL; 65 pdacf->card = NULL; 66 67 kfree(pdacf); 68 return 0; 69 } 70 71 static int snd_pdacf_dev_free(struct snd_device *device) 72 { 73 struct snd_pdacf *chip = device->device_data; 74 return snd_pdacf_free(chip); 75 } 76 77 /* 78 * snd_pdacf_attach - attach callback for cs 79 */ 80 static int snd_pdacf_probe(struct pcmcia_device *link) 81 { 82 int i, err; 83 struct snd_pdacf *pdacf; 84 struct snd_card *card; 85 static const struct snd_device_ops ops = { 86 .dev_free = snd_pdacf_dev_free, 87 }; 88 89 snd_printdd(KERN_DEBUG "pdacf_attach called\n"); 90 /* find an empty slot from the card list */ 91 for (i = 0; i < SNDRV_CARDS; i++) { 92 if (! card_list[i]) 93 break; 94 } 95 if (i >= SNDRV_CARDS) { 96 snd_printk(KERN_ERR "pdacf: too many cards found\n"); 97 return -EINVAL; 98 } 99 if (! enable[i]) 100 return -ENODEV; /* disabled explicitly */ 101 102 /* ok, create a card instance */ 103 err = snd_card_new(&link->dev, index[i], id[i], THIS_MODULE, 104 0, &card); 105 if (err < 0) { 106 snd_printk(KERN_ERR "pdacf: cannot create a card instance\n"); 107 return err; 108 } 109 110 pdacf = snd_pdacf_create(card); 111 if (!pdacf) { 112 snd_card_free(card); 113 return -ENOMEM; 114 } 115 116 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops); 117 if (err < 0) { 118 kfree(pdacf); 119 snd_card_free(card); 120 return err; 121 } 122 123 pdacf->index = i; 124 card_list[i] = card; 125 126 pdacf->p_dev = link; 127 link->priv = pdacf; 128 129 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; 130 link->resource[0]->end = 16; 131 132 link->config_flags = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; 133 link->config_index = 1; 134 link->config_regs = PRESENT_OPTION; 135 136 return pdacf_config(link); 137 } 138 139 140 /** 141 * snd_pdacf_assign_resources - initialize the hardware and card instance. 142 * @pdacf: context 143 * @port: i/o port for the card 144 * @irq: irq number for the card 145 * 146 * this function assigns the specified port and irq, boot the card, 147 * create pcm and control instances, and initialize the rest hardware. 148 * 149 * returns 0 if successful, or a negative error code. 150 */ 151 static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq) 152 { 153 int err; 154 struct snd_card *card = pdacf->card; 155 156 snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq); 157 pdacf->port = port; 158 pdacf->irq = irq; 159 pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED; 160 161 err = snd_pdacf_ak4117_create(pdacf); 162 if (err < 0) 163 return err; 164 165 strcpy(card->driver, "PDAudio-CF"); 166 sprintf(card->shortname, "Core Sound %s", card->driver); 167 sprintf(card->longname, "%s at 0x%x, irq %i", 168 card->shortname, port, irq); 169 170 err = snd_pdacf_pcm_new(pdacf); 171 if (err < 0) 172 return err; 173 174 if ((err = snd_card_register(card)) < 0) 175 return err; 176 177 return 0; 178 } 179 180 181 /* 182 * snd_pdacf_detach - detach callback for cs 183 */ 184 static void snd_pdacf_detach(struct pcmcia_device *link) 185 { 186 struct snd_pdacf *chip = link->priv; 187 188 snd_printdd(KERN_DEBUG "pdacf_detach called\n"); 189 190 if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED) 191 snd_pdacf_powerdown(chip); 192 chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */ 193 snd_card_disconnect(chip->card); 194 snd_card_free_when_closed(chip->card); 195 } 196 197 /* 198 * configuration callback 199 */ 200 201 static int pdacf_config(struct pcmcia_device *link) 202 { 203 struct snd_pdacf *pdacf = link->priv; 204 int ret; 205 206 snd_printdd(KERN_DEBUG "pdacf_config called\n"); 207 link->config_index = 0x5; 208 link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; 209 210 ret = pcmcia_request_io(link); 211 if (ret) 212 goto failed_preirq; 213 214 ret = request_threaded_irq(link->irq, pdacf_interrupt, 215 pdacf_threaded_irq, 216 IRQF_SHARED, link->devname, link->priv); 217 if (ret) 218 goto failed_preirq; 219 220 ret = pcmcia_enable_device(link); 221 if (ret) 222 goto failed; 223 224 if (snd_pdacf_assign_resources(pdacf, link->resource[0]->start, 225 link->irq) < 0) 226 goto failed; 227 228 pdacf->card->sync_irq = link->irq; 229 return 0; 230 231 failed: 232 free_irq(link->irq, link->priv); 233 failed_preirq: 234 pcmcia_disable_device(link); 235 return -ENODEV; 236 } 237 238 #ifdef CONFIG_PM 239 240 static int pdacf_suspend(struct pcmcia_device *link) 241 { 242 struct snd_pdacf *chip = link->priv; 243 244 snd_printdd(KERN_DEBUG "SUSPEND\n"); 245 if (chip) { 246 snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n"); 247 snd_pdacf_suspend(chip); 248 } 249 250 return 0; 251 } 252 253 static int pdacf_resume(struct pcmcia_device *link) 254 { 255 struct snd_pdacf *chip = link->priv; 256 257 snd_printdd(KERN_DEBUG "RESUME\n"); 258 if (pcmcia_dev_present(link)) { 259 if (chip) { 260 snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n"); 261 snd_pdacf_resume(chip); 262 } 263 } 264 snd_printdd(KERN_DEBUG "resume done!\n"); 265 266 return 0; 267 } 268 269 #endif 270 271 /* 272 * Module entry points 273 */ 274 static const struct pcmcia_device_id snd_pdacf_ids[] = { 275 /* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */ 276 PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49), 277 PCMCIA_DEVICE_NULL 278 }; 279 MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids); 280 281 static struct pcmcia_driver pdacf_cs_driver = { 282 .owner = THIS_MODULE, 283 .name = "snd-pdaudiocf", 284 .probe = snd_pdacf_probe, 285 .remove = snd_pdacf_detach, 286 .id_table = snd_pdacf_ids, 287 #ifdef CONFIG_PM 288 .suspend = pdacf_suspend, 289 .resume = pdacf_resume, 290 #endif 291 }; 292 module_pcmcia_driver(pdacf_cs_driver); 293