/* * Driver for Gravis UltraSound Classic soundcard * Copyright (c) by Jaroslav Kysela * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include #include #include #include #include #include #include #include #include #include #define SNDRV_LEGACY_FIND_FREE_IRQ #define SNDRV_LEGACY_FIND_FREE_DMA #include MODULE_AUTHOR("Jaroslav Kysela "); MODULE_DESCRIPTION("Gravis UltraSound Classic"); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}"); static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */ static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 3,5,9,11,12,15 */ static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29}; /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */ static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24}; static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "Index value for GUS Classic soundcard."); module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string for GUS Classic soundcard."); module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable GUS Classic soundcard."); module_param_array(port, long, NULL, 0444); MODULE_PARM_DESC(port, "Port # for GUS Classic driver."); module_param_array(irq, int, NULL, 0444); MODULE_PARM_DESC(irq, "IRQ # for GUS Classic driver."); module_param_array(dma1, int, NULL, 0444); MODULE_PARM_DESC(dma1, "DMA1 # for GUS Classic driver."); module_param_array(dma2, int, NULL, 0444); MODULE_PARM_DESC(dma2, "DMA2 # for GUS Classic driver."); module_param_array(joystick_dac, int, NULL, 0444); MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS Classic driver."); module_param_array(channels, int, NULL, 0444); MODULE_PARM_DESC(channels, "GF1 channels for GUS Classic driver."); module_param_array(pcm_channels, int, NULL, 0444); MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS Classic driver."); static struct platform_device *devices[SNDRV_CARDS]; #define PFX "gusclassic: " static int __init snd_gusclassic_detect(struct snd_gus_card * gus) { unsigned char d; snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */ if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) { snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d); return -ENODEV; } udelay(160); snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */ udelay(160); if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) { snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d); return -ENODEV; } return 0; } static void __init snd_gusclassic_init(int dev, struct snd_gus_card * gus) { gus->equal_irq = 0; gus->codec_flag = 0; gus->max_flag = 0; gus->joystick_dac = joystick_dac[dev]; } static int __init snd_gusclassic_probe(struct platform_device *pdev) { int dev = pdev->id; static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1}; static int possible_dmas[] = {5, 6, 7, 1, 3, -1}; int xirq, xdma1, xdma2; struct snd_card *card; struct snd_gus_card *gus = NULL; int err; card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); if (card == NULL) return -ENOMEM; if (pcm_channels[dev] < 2) pcm_channels[dev] = 2; xirq = irq[dev]; if (xirq == SNDRV_AUTO_IRQ) { if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) { snd_printk(KERN_ERR PFX "unable to find a free IRQ\n"); err = -EBUSY; goto _err; } } xdma1 = dma1[dev]; if (xdma1 == SNDRV_AUTO_DMA) { if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) { snd_printk(KERN_ERR PFX "unable to find a free DMA1\n"); err = -EBUSY; goto _err; } } xdma2 = dma2[dev]; if (xdma2 == SNDRV_AUTO_DMA) { if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) { snd_printk(KERN_ERR PFX "unable to find a free DMA2\n"); err = -EBUSY; goto _err; } } if (port[dev] != SNDRV_AUTO_PORT) { err = snd_gus_create(card, port[dev], xirq, xdma1, xdma2, 0, channels[dev], pcm_channels[dev], 0, &gus); } else { /* auto-probe legacy ports */ static unsigned long possible_ports[] = { 0x220, 0x230, 0x240, 0x250, 0x260, }; int i; for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { err = snd_gus_create(card, possible_ports[i], xirq, xdma1, xdma2, 0, channels[dev], pcm_channels[dev], 0, &gus); if (err >= 0) { port[dev] = possible_ports[i]; break; } } } if (err < 0) goto _err; if ((err = snd_gusclassic_detect(gus)) < 0) goto _err; snd_gusclassic_init(dev, gus); if ((err = snd_gus_initialize(gus)) < 0) goto _err; if (gus->max_flag || gus->ess_flag) { snd_printk(KERN_ERR PFX "GUS Classic or ACE soundcard was not detected at 0x%lx\n", gus->gf1.port); err = -ENODEV; goto _err; } if ((err = snd_gf1_new_mixer(gus)) < 0) goto _err; if ((err = snd_gf1_pcm_new(gus, 0, 0, NULL)) < 0) goto _err; if (!gus->ace_flag) { if ((err = snd_gf1_rawmidi_new(gus, 0, NULL)) < 0) goto _err; } sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %d, dma %d", gus->gf1.port, xirq, xdma1); if (xdma2 >= 0) sprintf(card->longname + strlen(card->longname), "&%d", xdma2); snd_card_set_dev(card, &pdev->dev); if ((err = snd_card_register(card)) < 0) goto _err; platform_set_drvdata(pdev, card); return 0; _err: snd_card_free(card); return err; } static int snd_gusclassic_remove(struct platform_device *devptr) { snd_card_free(platform_get_drvdata(devptr)); platform_set_drvdata(devptr, NULL); return 0; } #define GUSCLASSIC_DRIVER "snd_gusclassic" static struct platform_driver snd_gusclassic_driver = { .probe = snd_gusclassic_probe, .remove = snd_gusclassic_remove, /* FIXME: suspend/resume */ .driver = { .name = GUSCLASSIC_DRIVER }, }; static void __init_or_module snd_gusclassic_unregister_all(void) { int i; for (i = 0; i < ARRAY_SIZE(devices); ++i) platform_device_unregister(devices[i]); platform_driver_unregister(&snd_gusclassic_driver); } static int __init alsa_card_gusclassic_init(void) { int i, cards, err; err = platform_driver_register(&snd_gusclassic_driver); if (err < 0) return err; cards = 0; for (i = 0; i < SNDRV_CARDS && enable[i]; i++) { struct platform_device *device; device = platform_device_register_simple(GUSCLASSIC_DRIVER, i, NULL, 0); if (IS_ERR(device)) { err = PTR_ERR(device); goto errout; } devices[i] = device; cards++; } if (!cards) { #ifdef MODULE printk(KERN_ERR "GUS Classic soundcard not found or device busy\n"); #endif err = -ENODEV; goto errout; } return 0; errout: snd_gusclassic_unregister_all(); return err; } static void __exit alsa_card_gusclassic_exit(void) { snd_gusclassic_unregister_all(); } module_init(alsa_card_gusclassic_init) module_exit(alsa_card_gusclassic_exit)