1 /* 2 * Driver for Sound Core PDAudioCF soundcard 3 * 4 * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21 #include <sound/core.h> 22 #include <linux/slab.h> 23 #include <linux/module.h> 24 #include <pcmcia/ciscode.h> 25 #include <pcmcia/cisreg.h> 26 #include "pdaudiocf.h" 27 #include <sound/initval.h> 28 #include <linux/init.h> 29 30 /* 31 */ 32 33 #define CARD_NAME "PDAudio-CF" 34 35 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 36 MODULE_DESCRIPTION("Sound Core " CARD_NAME); 37 MODULE_LICENSE("GPL"); 38 MODULE_SUPPORTED_DEVICE("{{Sound Core," CARD_NAME "}}"); 39 40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 42 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */ 43 44 module_param_array(index, int, NULL, 0444); 45 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); 46 module_param_array(id, charp, NULL, 0444); 47 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); 48 module_param_array(enable, bool, NULL, 0444); 49 MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); 50 51 /* 52 */ 53 54 static struct snd_card *card_list[SNDRV_CARDS]; 55 56 /* 57 * prototypes 58 */ 59 static int pdacf_config(struct pcmcia_device *link); 60 static void snd_pdacf_detach(struct pcmcia_device *p_dev); 61 62 static void pdacf_release(struct pcmcia_device *link) 63 { 64 free_irq(link->irq, link->priv); 65 pcmcia_disable_device(link); 66 } 67 68 /* 69 * destructor 70 */ 71 static int snd_pdacf_free(struct snd_pdacf *pdacf) 72 { 73 struct pcmcia_device *link = pdacf->p_dev; 74 75 pdacf_release(link); 76 77 card_list[pdacf->index] = NULL; 78 pdacf->card = NULL; 79 80 kfree(pdacf); 81 return 0; 82 } 83 84 static int snd_pdacf_dev_free(struct snd_device *device) 85 { 86 struct snd_pdacf *chip = device->device_data; 87 return snd_pdacf_free(chip); 88 } 89 90 /* 91 * snd_pdacf_attach - attach callback for cs 92 */ 93 static int snd_pdacf_probe(struct pcmcia_device *link) 94 { 95 int i, err; 96 struct snd_pdacf *pdacf; 97 struct snd_card *card; 98 static struct snd_device_ops ops = { 99 .dev_free = snd_pdacf_dev_free, 100 }; 101 102 snd_printdd(KERN_DEBUG "pdacf_attach called\n"); 103 /* find an empty slot from the card list */ 104 for (i = 0; i < SNDRV_CARDS; i++) { 105 if (! card_list[i]) 106 break; 107 } 108 if (i >= SNDRV_CARDS) { 109 snd_printk(KERN_ERR "pdacf: too many cards found\n"); 110 return -EINVAL; 111 } 112 if (! enable[i]) 113 return -ENODEV; /* disabled explicitly */ 114 115 /* ok, create a card instance */ 116 err = snd_card_new(&link->dev, index[i], id[i], THIS_MODULE, 117 0, &card); 118 if (err < 0) { 119 snd_printk(KERN_ERR "pdacf: cannot create a card instance\n"); 120 return err; 121 } 122 123 pdacf = snd_pdacf_create(card); 124 if (!pdacf) { 125 snd_card_free(card); 126 return -ENOMEM; 127 } 128 129 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops); 130 if (err < 0) { 131 kfree(pdacf); 132 snd_card_free(card); 133 return err; 134 } 135 136 pdacf->index = i; 137 card_list[i] = card; 138 139 pdacf->p_dev = link; 140 link->priv = pdacf; 141 142 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; 143 link->resource[0]->end = 16; 144 145 link->config_flags = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; 146 link->config_index = 1; 147 link->config_regs = PRESENT_OPTION; 148 149 return pdacf_config(link); 150 } 151 152 153 /** 154 * snd_pdacf_assign_resources - initialize the hardware and card instance. 155 * @port: i/o port for the card 156 * @irq: irq number for the card 157 * 158 * this function assigns the specified port and irq, boot the card, 159 * create pcm and control instances, and initialize the rest hardware. 160 * 161 * returns 0 if successful, or a negative error code. 162 */ 163 static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq) 164 { 165 int err; 166 struct snd_card *card = pdacf->card; 167 168 snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq); 169 pdacf->port = port; 170 pdacf->irq = irq; 171 pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED; 172 173 err = snd_pdacf_ak4117_create(pdacf); 174 if (err < 0) 175 return err; 176 177 strcpy(card->driver, "PDAudio-CF"); 178 sprintf(card->shortname, "Core Sound %s", card->driver); 179 sprintf(card->longname, "%s at 0x%x, irq %i", 180 card->shortname, port, irq); 181 182 err = snd_pdacf_pcm_new(pdacf); 183 if (err < 0) 184 return err; 185 186 if ((err = snd_card_register(card)) < 0) 187 return err; 188 189 return 0; 190 } 191 192 193 /* 194 * snd_pdacf_detach - detach callback for cs 195 */ 196 static void snd_pdacf_detach(struct pcmcia_device *link) 197 { 198 struct snd_pdacf *chip = link->priv; 199 200 snd_printdd(KERN_DEBUG "pdacf_detach called\n"); 201 202 if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED) 203 snd_pdacf_powerdown(chip); 204 chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */ 205 snd_card_disconnect(chip->card); 206 snd_card_free_when_closed(chip->card); 207 } 208 209 /* 210 * configuration callback 211 */ 212 213 static int pdacf_config(struct pcmcia_device *link) 214 { 215 struct snd_pdacf *pdacf = link->priv; 216 int ret; 217 218 snd_printdd(KERN_DEBUG "pdacf_config called\n"); 219 link->config_index = 0x5; 220 link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; 221 222 ret = pcmcia_request_io(link); 223 if (ret) 224 goto failed_preirq; 225 226 ret = request_threaded_irq(link->irq, pdacf_interrupt, 227 pdacf_threaded_irq, 228 IRQF_SHARED, link->devname, link->priv); 229 if (ret) 230 goto failed_preirq; 231 232 ret = pcmcia_enable_device(link); 233 if (ret) 234 goto failed; 235 236 if (snd_pdacf_assign_resources(pdacf, link->resource[0]->start, 237 link->irq) < 0) 238 goto failed; 239 240 return 0; 241 242 failed: 243 free_irq(link->irq, link->priv); 244 failed_preirq: 245 pcmcia_disable_device(link); 246 return -ENODEV; 247 } 248 249 #ifdef CONFIG_PM 250 251 static int pdacf_suspend(struct pcmcia_device *link) 252 { 253 struct snd_pdacf *chip = link->priv; 254 255 snd_printdd(KERN_DEBUG "SUSPEND\n"); 256 if (chip) { 257 snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n"); 258 snd_pdacf_suspend(chip); 259 } 260 261 return 0; 262 } 263 264 static int pdacf_resume(struct pcmcia_device *link) 265 { 266 struct snd_pdacf *chip = link->priv; 267 268 snd_printdd(KERN_DEBUG "RESUME\n"); 269 if (pcmcia_dev_present(link)) { 270 if (chip) { 271 snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n"); 272 snd_pdacf_resume(chip); 273 } 274 } 275 snd_printdd(KERN_DEBUG "resume done!\n"); 276 277 return 0; 278 } 279 280 #endif 281 282 /* 283 * Module entry points 284 */ 285 static const struct pcmcia_device_id snd_pdacf_ids[] = { 286 /* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */ 287 PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49), 288 PCMCIA_DEVICE_NULL 289 }; 290 MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids); 291 292 static struct pcmcia_driver pdacf_cs_driver = { 293 .owner = THIS_MODULE, 294 .name = "snd-pdaudiocf", 295 .probe = snd_pdacf_probe, 296 .remove = snd_pdacf_detach, 297 .id_table = snd_pdacf_ids, 298 #ifdef CONFIG_PM 299 .suspend = pdacf_suspend, 300 .resume = pdacf_resume, 301 #endif 302 }; 303 module_pcmcia_driver(pdacf_cs_driver); 304