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 * @port: i/o port for the card 143 * @irq: irq number for the card 144 * 145 * this function assigns the specified port and irq, boot the card, 146 * create pcm and control instances, and initialize the rest hardware. 147 * 148 * returns 0 if successful, or a negative error code. 149 */ 150 static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq) 151 { 152 int err; 153 struct snd_card *card = pdacf->card; 154 155 snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq); 156 pdacf->port = port; 157 pdacf->irq = irq; 158 pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED; 159 160 err = snd_pdacf_ak4117_create(pdacf); 161 if (err < 0) 162 return err; 163 164 strcpy(card->driver, "PDAudio-CF"); 165 sprintf(card->shortname, "Core Sound %s", card->driver); 166 sprintf(card->longname, "%s at 0x%x, irq %i", 167 card->shortname, port, irq); 168 169 err = snd_pdacf_pcm_new(pdacf); 170 if (err < 0) 171 return err; 172 173 if ((err = snd_card_register(card)) < 0) 174 return err; 175 176 return 0; 177 } 178 179 180 /* 181 * snd_pdacf_detach - detach callback for cs 182 */ 183 static void snd_pdacf_detach(struct pcmcia_device *link) 184 { 185 struct snd_pdacf *chip = link->priv; 186 187 snd_printdd(KERN_DEBUG "pdacf_detach called\n"); 188 189 if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED) 190 snd_pdacf_powerdown(chip); 191 chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */ 192 snd_card_disconnect(chip->card); 193 snd_card_free_when_closed(chip->card); 194 } 195 196 /* 197 * configuration callback 198 */ 199 200 static int pdacf_config(struct pcmcia_device *link) 201 { 202 struct snd_pdacf *pdacf = link->priv; 203 int ret; 204 205 snd_printdd(KERN_DEBUG "pdacf_config called\n"); 206 link->config_index = 0x5; 207 link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; 208 209 ret = pcmcia_request_io(link); 210 if (ret) 211 goto failed_preirq; 212 213 ret = request_threaded_irq(link->irq, pdacf_interrupt, 214 pdacf_threaded_irq, 215 IRQF_SHARED, link->devname, link->priv); 216 if (ret) 217 goto failed_preirq; 218 219 ret = pcmcia_enable_device(link); 220 if (ret) 221 goto failed; 222 223 if (snd_pdacf_assign_resources(pdacf, link->resource[0]->start, 224 link->irq) < 0) 225 goto failed; 226 227 pdacf->card->sync_irq = link->irq; 228 return 0; 229 230 failed: 231 free_irq(link->irq, link->priv); 232 failed_preirq: 233 pcmcia_disable_device(link); 234 return -ENODEV; 235 } 236 237 #ifdef CONFIG_PM 238 239 static int pdacf_suspend(struct pcmcia_device *link) 240 { 241 struct snd_pdacf *chip = link->priv; 242 243 snd_printdd(KERN_DEBUG "SUSPEND\n"); 244 if (chip) { 245 snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n"); 246 snd_pdacf_suspend(chip); 247 } 248 249 return 0; 250 } 251 252 static int pdacf_resume(struct pcmcia_device *link) 253 { 254 struct snd_pdacf *chip = link->priv; 255 256 snd_printdd(KERN_DEBUG "RESUME\n"); 257 if (pcmcia_dev_present(link)) { 258 if (chip) { 259 snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n"); 260 snd_pdacf_resume(chip); 261 } 262 } 263 snd_printdd(KERN_DEBUG "resume done!\n"); 264 265 return 0; 266 } 267 268 #endif 269 270 /* 271 * Module entry points 272 */ 273 static const struct pcmcia_device_id snd_pdacf_ids[] = { 274 /* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */ 275 PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49), 276 PCMCIA_DEVICE_NULL 277 }; 278 MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids); 279 280 static struct pcmcia_driver pdacf_cs_driver = { 281 .owner = THIS_MODULE, 282 .name = "snd-pdaudiocf", 283 .probe = snd_pdacf_probe, 284 .remove = snd_pdacf_detach, 285 .id_table = snd_pdacf_ids, 286 #ifdef CONFIG_PM 287 .suspend = pdacf_suspend, 288 .resume = pdacf_resume, 289 #endif 290 }; 291 module_pcmcia_driver(pdacf_cs_driver); 292