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 pcmcia_disable_device(link); 65 } 66 67 /* 68 * destructor 69 */ 70 static int snd_pdacf_free(struct snd_pdacf *pdacf) 71 { 72 struct pcmcia_device *link = pdacf->p_dev; 73 74 pdacf_release(link); 75 76 card_list[pdacf->index] = NULL; 77 pdacf->card = NULL; 78 79 kfree(pdacf); 80 return 0; 81 } 82 83 static int snd_pdacf_dev_free(struct snd_device *device) 84 { 85 struct snd_pdacf *chip = device->device_data; 86 return snd_pdacf_free(chip); 87 } 88 89 /* 90 * snd_pdacf_attach - attach callback for cs 91 */ 92 static int snd_pdacf_probe(struct pcmcia_device *link) 93 { 94 int i, err; 95 struct snd_pdacf *pdacf; 96 struct snd_card *card; 97 static struct snd_device_ops ops = { 98 .dev_free = snd_pdacf_dev_free, 99 }; 100 101 snd_printdd(KERN_DEBUG "pdacf_attach called\n"); 102 /* find an empty slot from the card list */ 103 for (i = 0; i < SNDRV_CARDS; i++) { 104 if (! card_list[i]) 105 break; 106 } 107 if (i >= SNDRV_CARDS) { 108 snd_printk(KERN_ERR "pdacf: too many cards found\n"); 109 return -EINVAL; 110 } 111 if (! enable[i]) 112 return -ENODEV; /* disabled explicitly */ 113 114 /* ok, create a card instance */ 115 err = snd_card_new(&link->dev, index[i], id[i], THIS_MODULE, 116 0, &card); 117 if (err < 0) { 118 snd_printk(KERN_ERR "pdacf: cannot create a card instance\n"); 119 return err; 120 } 121 122 pdacf = snd_pdacf_create(card); 123 if (!pdacf) { 124 snd_card_free(card); 125 return -ENOMEM; 126 } 127 128 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops); 129 if (err < 0) { 130 kfree(pdacf); 131 snd_card_free(card); 132 return err; 133 } 134 135 pdacf->index = i; 136 card_list[i] = card; 137 138 pdacf->p_dev = link; 139 link->priv = pdacf; 140 141 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; 142 link->resource[0]->end = 16; 143 144 link->config_flags = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; 145 link->config_index = 1; 146 link->config_regs = PRESENT_OPTION; 147 148 return pdacf_config(link); 149 } 150 151 152 /** 153 * snd_pdacf_assign_resources - initialize the hardware and card instance. 154 * @port: i/o port for the card 155 * @irq: irq number for the card 156 * 157 * this function assigns the specified port and irq, boot the card, 158 * create pcm and control instances, and initialize the rest hardware. 159 * 160 * returns 0 if successful, or a negative error code. 161 */ 162 static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq) 163 { 164 int err; 165 struct snd_card *card = pdacf->card; 166 167 snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq); 168 pdacf->port = port; 169 pdacf->irq = irq; 170 pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED; 171 172 err = snd_pdacf_ak4117_create(pdacf); 173 if (err < 0) 174 return err; 175 176 strcpy(card->driver, "PDAudio-CF"); 177 sprintf(card->shortname, "Core Sound %s", card->driver); 178 sprintf(card->longname, "%s at 0x%x, irq %i", 179 card->shortname, port, irq); 180 181 err = snd_pdacf_pcm_new(pdacf); 182 if (err < 0) 183 return err; 184 185 if ((err = snd_card_register(card)) < 0) 186 return err; 187 188 return 0; 189 } 190 191 192 /* 193 * snd_pdacf_detach - detach callback for cs 194 */ 195 static void snd_pdacf_detach(struct pcmcia_device *link) 196 { 197 struct snd_pdacf *chip = link->priv; 198 199 snd_printdd(KERN_DEBUG "pdacf_detach called\n"); 200 201 if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED) 202 snd_pdacf_powerdown(chip); 203 chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */ 204 snd_card_disconnect(chip->card); 205 snd_card_free_when_closed(chip->card); 206 } 207 208 /* 209 * configuration callback 210 */ 211 212 static int pdacf_config(struct pcmcia_device *link) 213 { 214 struct snd_pdacf *pdacf = link->priv; 215 int ret; 216 217 snd_printdd(KERN_DEBUG "pdacf_config called\n"); 218 link->config_index = 0x5; 219 link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; 220 221 ret = pcmcia_request_io(link); 222 if (ret) 223 goto failed; 224 225 ret = pcmcia_request_irq(link, pdacf_interrupt); 226 if (ret) 227 goto failed; 228 229 ret = pcmcia_enable_device(link); 230 if (ret) 231 goto failed; 232 233 if (snd_pdacf_assign_resources(pdacf, link->resource[0]->start, 234 link->irq) < 0) 235 goto failed; 236 237 return 0; 238 239 failed: 240 pcmcia_disable_device(link); 241 return -ENODEV; 242 } 243 244 #ifdef CONFIG_PM 245 246 static int pdacf_suspend(struct pcmcia_device *link) 247 { 248 struct snd_pdacf *chip = link->priv; 249 250 snd_printdd(KERN_DEBUG "SUSPEND\n"); 251 if (chip) { 252 snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n"); 253 snd_pdacf_suspend(chip); 254 } 255 256 return 0; 257 } 258 259 static int pdacf_resume(struct pcmcia_device *link) 260 { 261 struct snd_pdacf *chip = link->priv; 262 263 snd_printdd(KERN_DEBUG "RESUME\n"); 264 if (pcmcia_dev_present(link)) { 265 if (chip) { 266 snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n"); 267 snd_pdacf_resume(chip); 268 } 269 } 270 snd_printdd(KERN_DEBUG "resume done!\n"); 271 272 return 0; 273 } 274 275 #endif 276 277 /* 278 * Module entry points 279 */ 280 static const struct pcmcia_device_id snd_pdacf_ids[] = { 281 /* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */ 282 PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49), 283 PCMCIA_DEVICE_NULL 284 }; 285 MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids); 286 287 static struct pcmcia_driver pdacf_cs_driver = { 288 .owner = THIS_MODULE, 289 .name = "snd-pdaudiocf", 290 .probe = snd_pdacf_probe, 291 .remove = snd_pdacf_detach, 292 .id_table = snd_pdacf_ids, 293 #ifdef CONFIG_PM 294 .suspend = pdacf_suspend, 295 .resume = pdacf_resume, 296 #endif 297 }; 298 module_pcmcia_driver(pdacf_cs_driver); 299