rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 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); |