Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | card-es968.c - driver for ESS AudioDrive ES968 based soundcards. |
| 4 | Copyright (C) 1999 by Massimo Piccioni <dafastidio@libero.it> |
| 5 | |
| 6 | Thanks to Pierfrancesco 'qM2' Passerini. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | */ |
| 22 | |
| 23 | #include <sound/driver.h> |
| 24 | #include <linux/init.h> |
| 25 | #include <linux/time.h> |
| 26 | #include <linux/pnp.h> |
| 27 | #include <linux/moduleparam.h> |
| 28 | #include <sound/core.h> |
| 29 | #include <sound/initval.h> |
| 30 | #include <sound/sb.h> |
| 31 | |
| 32 | #define PFX "es968: " |
| 33 | |
| 34 | MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>"); |
| 35 | MODULE_DESCRIPTION("ESS AudioDrive ES968"); |
| 36 | MODULE_LICENSE("GPL"); |
| 37 | MODULE_SUPPORTED_DEVICE("{{ESS,AudioDrive ES968}}"); |
| 38 | |
| 39 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
| 40 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
| 41 | static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */ |
| 42 | static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ |
| 43 | static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* Pnp setup */ |
| 44 | static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* PnP setup */ |
| 45 | |
| 46 | module_param_array(index, int, NULL, 0444); |
| 47 | MODULE_PARM_DESC(index, "Index value for es968 based soundcard."); |
| 48 | module_param_array(id, charp, NULL, 0444); |
| 49 | MODULE_PARM_DESC(id, "ID string for es968 based soundcard."); |
| 50 | module_param_array(enable, bool, NULL, 0444); |
| 51 | MODULE_PARM_DESC(enable, "Enable es968 based soundcard."); |
| 52 | module_param_array(port, long, NULL, 0444); |
| 53 | MODULE_PARM_DESC(port, "Port # for es968 driver."); |
| 54 | module_param_array(irq, int, NULL, 0444); |
| 55 | MODULE_PARM_DESC(irq, "IRQ # for es968 driver."); |
| 56 | module_param_array(dma8, int, NULL, 0444); |
| 57 | MODULE_PARM_DESC(dma8, "8-bit DMA # for es968 driver."); |
| 58 | |
| 59 | struct snd_card_es968 { |
| 60 | struct pnp_dev *dev; |
| 61 | }; |
| 62 | |
| 63 | static struct pnp_card_device_id snd_es968_pnpids[] = { |
| 64 | { .id = "ESS0968", .devs = { { "@@@0968" }, } }, |
| 65 | { .id = "", } /* end */ |
| 66 | }; |
| 67 | |
| 68 | MODULE_DEVICE_TABLE(pnp_card, snd_es968_pnpids); |
| 69 | |
| 70 | #define DRIVER_NAME "snd-card-es968" |
| 71 | |
| 72 | static irqreturn_t snd_card_es968_interrupt(int irq, void *dev_id, |
| 73 | struct pt_regs *regs) |
| 74 | { |
| 75 | sb_t *chip = dev_id; |
| 76 | |
| 77 | if (chip->open & SB_OPEN_PCM) { |
| 78 | return snd_sb8dsp_interrupt(chip); |
| 79 | } else { |
| 80 | return snd_sb8dsp_midi_interrupt(chip); |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | static int __devinit snd_card_es968_pnp(int dev, struct snd_card_es968 *acard, |
| 85 | struct pnp_card_link *card, |
| 86 | const struct pnp_card_device_id *id) |
| 87 | { |
| 88 | struct pnp_dev *pdev; |
| 89 | struct pnp_resource_table *cfg = kmalloc(sizeof(*cfg), GFP_KERNEL); |
| 90 | int err; |
| 91 | if (!cfg) |
| 92 | return -ENOMEM; |
| 93 | acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL); |
| 94 | if (acard->dev == NULL) { |
| 95 | kfree(cfg); |
| 96 | return -ENODEV; |
| 97 | } |
| 98 | |
| 99 | pdev = acard->dev; |
| 100 | |
| 101 | pnp_init_resource_table(cfg); |
| 102 | |
| 103 | /* override resources */ |
| 104 | if (port[dev] != SNDRV_AUTO_PORT) |
| 105 | pnp_resource_change(&cfg->port_resource[0], port[dev], 16); |
| 106 | if (dma8[dev] != SNDRV_AUTO_DMA) |
| 107 | pnp_resource_change(&cfg->dma_resource[0], dma8[dev], 1); |
| 108 | if (irq[dev] != SNDRV_AUTO_IRQ) |
| 109 | pnp_resource_change(&cfg->irq_resource[0], irq[dev], 1); |
| 110 | if ((pnp_manual_config_dev(pdev, cfg, 0)) < 0) |
| 111 | snd_printk(KERN_ERR PFX "AUDIO the requested resources are invalid, using auto config\n"); |
| 112 | err = pnp_activate_dev(pdev); |
| 113 | if (err < 0) { |
| 114 | snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n"); |
| 115 | kfree(cfg); |
| 116 | return err; |
| 117 | } |
| 118 | port[dev] = pnp_port_start(pdev, 0); |
| 119 | dma8[dev] = pnp_dma(pdev, 1); |
| 120 | irq[dev] = pnp_irq(pdev, 0); |
| 121 | |
| 122 | kfree(cfg); |
| 123 | return 0; |
| 124 | } |
| 125 | |
| 126 | static int __init snd_card_es968_probe(int dev, |
| 127 | struct pnp_card_link *pcard, |
| 128 | const struct pnp_card_device_id *pid) |
| 129 | { |
| 130 | int error; |
| 131 | sb_t *chip; |
| 132 | snd_card_t *card; |
| 133 | struct snd_card_es968 *acard; |
| 134 | |
| 135 | if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE, |
| 136 | sizeof(struct snd_card_es968))) == NULL) |
| 137 | return -ENOMEM; |
| 138 | acard = (struct snd_card_es968 *)card->private_data; |
| 139 | if ((error = snd_card_es968_pnp(dev, acard, pcard, pid))) { |
| 140 | snd_card_free(card); |
| 141 | return error; |
| 142 | } |
| 143 | snd_card_set_dev(card, &pcard->card->dev); |
| 144 | |
| 145 | if ((error = snd_sbdsp_create(card, port[dev], |
| 146 | irq[dev], |
| 147 | snd_card_es968_interrupt, |
| 148 | dma8[dev], |
| 149 | -1, |
| 150 | SB_HW_AUTO, &chip)) < 0) { |
| 151 | snd_card_free(card); |
| 152 | return error; |
| 153 | } |
| 154 | |
| 155 | if ((error = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) { |
| 156 | snd_card_free(card); |
| 157 | return error; |
| 158 | } |
| 159 | |
| 160 | if ((error = snd_sbmixer_new(chip)) < 0) { |
| 161 | snd_card_free(card); |
| 162 | return error; |
| 163 | } |
| 164 | |
| 165 | if ((error = snd_sb8dsp_midi(chip, 0, NULL)) < 0) { |
| 166 | snd_card_free(card); |
| 167 | return error; |
| 168 | } |
| 169 | |
| 170 | strcpy(card->driver, "ES968"); |
| 171 | strcpy(card->shortname, "ESS ES968"); |
| 172 | sprintf(card->longname, "%s soundcard, %s at 0x%lx, irq %d, dma %d", |
| 173 | card->shortname, chip->name, chip->port, irq[dev], dma8[dev]); |
| 174 | |
| 175 | if ((error = snd_card_register(card)) < 0) { |
| 176 | snd_card_free(card); |
| 177 | return error; |
| 178 | } |
| 179 | pnp_set_card_drvdata(pcard, card); |
| 180 | return 0; |
| 181 | } |
| 182 | |
| 183 | static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card, |
| 184 | const struct pnp_card_device_id *id) |
| 185 | { |
| 186 | static int dev; |
| 187 | int res; |
| 188 | |
| 189 | for ( ; dev < SNDRV_CARDS; dev++) { |
| 190 | if (!enable[dev]) |
| 191 | continue; |
| 192 | res = snd_card_es968_probe(dev, card, id); |
| 193 | if (res < 0) |
| 194 | return res; |
| 195 | dev++; |
| 196 | return 0; |
| 197 | } |
| 198 | return -ENODEV; |
| 199 | } |
| 200 | |
| 201 | static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard) |
| 202 | { |
| 203 | snd_card_t *card = (snd_card_t *) pnp_get_card_drvdata(pcard); |
| 204 | |
| 205 | snd_card_disconnect(card); |
| 206 | snd_card_free_in_thread(card); |
| 207 | } |
| 208 | |
| 209 | static struct pnp_card_driver es968_pnpc_driver = { |
| 210 | .flags = PNP_DRIVER_RES_DISABLE, |
| 211 | .name = "es968", |
| 212 | .id_table = snd_es968_pnpids, |
| 213 | .probe = snd_es968_pnp_detect, |
| 214 | .remove = __devexit_p(snd_es968_pnp_remove), |
| 215 | }; |
| 216 | |
| 217 | static int __init alsa_card_es968_init(void) |
| 218 | { |
| 219 | int cards = pnp_register_card_driver(&es968_pnpc_driver); |
| 220 | #ifdef MODULE |
| 221 | if (cards == 0) { |
| 222 | pnp_unregister_card_driver(&es968_pnpc_driver); |
| 223 | snd_printk(KERN_ERR "no ES968 based soundcards found\n"); |
| 224 | } |
| 225 | #endif |
| 226 | return cards ? 0 : -ENODEV; |
| 227 | } |
| 228 | |
| 229 | static void __exit alsa_card_es968_exit(void) |
| 230 | { |
| 231 | pnp_unregister_card_driver(&es968_pnpc_driver); |
| 232 | } |
| 233 | |
| 234 | module_init(alsa_card_es968_init) |
| 235 | module_exit(alsa_card_es968_exit) |