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/* |
#define __NO_VERSION__ |
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* ALSA driver for the Aureal Vortex family of soundprocessors. |
#include "../../alsa-kernel/pci/au88x0/au88x0.c" |
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* Author: Manuel Jander (mjander@embedded.cl) |
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* |
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* This driver is the result of the OpenVortex Project from Savannah |
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* (savannah.nongnu.org/projects/openvortex). I would like to thank |
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* the developers of OpenVortex, Jeff Muizelar and Kester Maddock, from |
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* whom i got plenty of help, and their codebase was invaluable. |
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* Thanks to the ALSA developers, they helped a lot working out |
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* the ALSA part. |
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* Thanks also to Sourceforge for maintaining the old binary drivers, |
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* and the forum, where developers could comunicate. |
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* |
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* Now at least i can play Legacy DOOM with MIDI music :-) |
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*/ |
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#include "au88x0.h" |
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#include <linux/init.h> |
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#include <linux/pci.h> |
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#include <linux/slab.h> |
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#include <linux/interrupt.h> |
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#define SNDRV_GET_ID |
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#include <sound/initval.h> |
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// module parameters (see "Module Parameters") |
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; |
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static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; |
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MODULE_PARM(index, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
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MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); |
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MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC); |
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MODULE_PARM(id, "1-" __MODULE_STRING(SNDRV_CARDS) "s"); |
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MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); |
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MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC); |
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MODULE_PARM(enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
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MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); |
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MODULE_PARM_SYNTAX(enable, SNDRV_ENABLE_DESC); |
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MODULE_DESCRIPTION("Aureal vortex"); |
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MODULE_CLASSES("{sound}"); |
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MODULE_LICENSE("GPL"); |
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MODULE_DEVICES("{{Aureal Semiconductor Inc., Aureal Vortex Sound Processor}}"); |
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#ifndef MODULE |
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/* format is: snd-mychip=enable,index,id */ |
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static int __init alsa_card_vortex_setup(char *str) { |
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static unsigned __initdata nr_dev = 0; |
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if (nr_dev >= SNDRV_CARDS) |
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return 0; |
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(void) (get_option(&str, &enable[nr_dev]) == 2 && |
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get_option(&str, &index[nr_dev]) == 2 && |
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get_id(&str, &id[nr_dev]) == 2); |
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nr_dev++; |
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return 1; |
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} |
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__setup("snd-au88x0=", alsa_card_vortex_setup); |
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#endif /* ifndef MODULE */ |
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MODULE_DEVICE_TABLE(pci, snd_vortex_ids); |
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// component-destructor |
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// (see "Management of Cards and Components") |
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static int snd_vortex_dev_free(snd_device_t *device) { |
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vortex_t *vortex = snd_magic_cast(vortex_t, device->device_data, |
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return -ENXIO); |
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vortex_gameport_unregister(vortex); |
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vortex_core_shutdown(vortex); |
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// Take down PCI interface. |
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synchronize_irq(vortex->irq); |
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free_irq(vortex->irq, vortex); |
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pci_release_regions(vortex->pci_dev); |
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pci_disable_device(vortex->pci_dev); |
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snd_magic_kfree(vortex); |
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return 0; |
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} |
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// chip-specific constructor |
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// (see "Management of Cards and Components") |
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static int __devinit |
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snd_vortex_create(snd_card_t *card, struct pci_dev *pci, vortex_t **rchip) { |
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vortex_t *chip; |
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int err; |
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static snd_device_ops_t ops = { |
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.dev_free = snd_vortex_dev_free, |
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}; |
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*rchip = NULL; |
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// check PCI availability (DMA). |
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if ((err = pci_enable_device(pci)) < 0) |
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return err; |
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if (!pci_dma_supported(pci, VORTEX_DMA_MASK)) { |
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printk(KERN_ERR "error to set DMA mask\n"); |
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return -ENXIO; |
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} |
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pci_set_dma_mask(pci, VORTEX_DMA_MASK); |
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chip = snd_magic_kcalloc(vortex_t, 0, GFP_KERNEL); |
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if (chip == NULL) |
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return -ENOMEM; |
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chip->card = card; |
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// initialize the stuff |
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chip->pci_dev = pci; |
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chip->io = pci_resource_start(pci, 0); |
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chip->vendor = pci->vendor; |
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chip->device = pci->device; |
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chip->card = card; |
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chip->irq = -1; |
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// (1) PCI resource allocation |
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// Get MMIO area |
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// |
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if ((err = pci_request_regions(pci, CARD_NAME_SHORT)) != 0) |
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goto regions_out; |
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chip->mmio = ioremap_nocache(pci_resource_start(pci,0), pci_resource_len(pci,0)); |
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if (!chip->mmio) { |
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printk(KERN_ERR "MMIO area remap failed.\n"); |
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err = -ENOMEM; |
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goto ioremap_out; |
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} |
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/* Init audio core. |
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* This must be done before we do request_irq otherwise we can get spurious |
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* interupts that we do not handle properly and make a mess of things */ |
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if ((err = vortex_core_init(chip)) != 0) { |
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printk(KERN_ERR "hw core init failed\n"); |
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goto core_out; |
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} |
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if ((err = request_irq(pci->irq, vortex_interrupt, SA_INTERRUPT | SA_SHIRQ, |
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CARD_NAME_SHORT, (void *) chip)) != 0) { |
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printk(KERN_ERR "cannot grab irq\n"); |
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goto irq_out; |
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} |
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chip->irq = pci->irq; |
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pci_set_master(pci); |
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// End of PCI setup. |
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// Register alsa root device. |
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if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { |
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goto alloc_out; |
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} |
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*rchip = chip; |
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return 0; |
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alloc_out: |
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synchronize_irq(chip->irq); |
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free_irq(chip->irq, chip); |
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irq_out: |
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vortex_core_shutdown(chip); |
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core_out: |
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//FIXME: the type of chip->mmio might need to be changed?? |
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iounmap((void*)chip->mmio); |
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ioremap_out: |
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pci_release_regions(chip->pci_dev); |
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regions_out: |
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pci_disable_device(chip->pci_dev); |
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//FIXME: this not the right place to unregister the gameport |
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vortex_gameport_unregister(chip); |
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return err; |
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} |
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// constructor -- see "Constructor" sub-section |
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static int __devinit |
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snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { |
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static int dev; |
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snd_card_t *card; |
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vortex_t *chip; |
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int err; |
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// (1) |
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if (dev >= SNDRV_CARDS) |
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return -ENODEV; |
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if (!enable[dev]) { |
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dev++; |
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return -ENOENT; |
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} |
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// (2) |
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card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); |
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if (card == NULL) |
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return -ENOMEM; |
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// (3) |
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if ((err = snd_vortex_create(card, pci, &chip)) < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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// (4) Alloc components. |
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// ADB pcm. |
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if ((err = snd_vortex_new_pcm(chip, 0, NR_ADB)) < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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// WT pcm. |
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if ((err = snd_vortex_new_pcm(chip, 1, NR_WT)) < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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// snd_ac97_mixer and Vortex mixer. |
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if ((err = snd_vortex_mixer(chip)) < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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if ((err = snd_vortex_midi(chip)) < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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if ((err = vortex_gameport_register(chip)) < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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#if 0 |
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if (snd_seq_device_new(card, 1, SNDRV_SEQ_DEV_ID_VORTEX_SYNTH, |
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sizeof(snd_vortex_synth_arg_t), &wave) < 0 |
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|| wave == NULL) { |
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snd_printk("Can't initialize Aureal wavetable synth\n"); |
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} else { |
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snd_vortex_synth_arg_t *arg; |
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arg = SNDRV_SEQ_DEVICE_ARGPTR(wave); |
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strcpy(wave->name, "Aureal Synth"); |
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arg->hwptr = vortex; |
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arg->index = 1; |
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arg->seq_ports = seq_ports[dev]; |
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arg->max_voices = max_synth_voices[dev]; |
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} |
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#endif |
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// (5) |
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strcpy(card->driver, "Aureal Vortex"); |
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strcpy(card->shortname, CARD_NAME_SHORT); |
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sprintf(card->longname, "%s at 0x%lx irq %i", |
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card->shortname, chip->io, chip->irq); |
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#ifdef CHIP_AU8830 |
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{ |
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unsigned char revision; |
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if ((err = pci_read_config_byte(pci, PCI_REVISION_ID, &revision)) < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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if (revision != 0xfe && revision != 0xfa) { |
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printk(KERN_ALERT "vortex: The revision (%x) of your card has not been seen before.\n", revision); |
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printk(KERN_ALERT "vortex: Please email the results of 'lspci -vv' to openvortex-dev@nongnu.org.\n"); |
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snd_card_free(card); |
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err = -ENODEV; |
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return err; |
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} |
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} |
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#endif |
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// (6) |
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if ((err = snd_card_register(card)) < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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// (7) |
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pci_set_drvdata(pci, chip); |
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dev++; |
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vortex_enable_int(chip); |
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return 0; |
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} |
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// destructor -- see "Destructor" sub-section |
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static void __devexit snd_vortex_remove(struct pci_dev *pci) { |
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vortex_t *vortex = snd_magic_cast(vortex_t, |
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pci_get_drvdata(pci), return); |
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if (vortex) { |
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// Release ALSA stuff. |
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snd_card_free(vortex->card); |
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// Free Vortex struct. |
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pci_set_drvdata(pci, NULL); |
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} else |
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printk("snd_vortex_remove called more than one time!\n"); |
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} |
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// pci_driver definition |
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static struct pci_driver driver = { |
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.name = CARD_NAME_SHORT, |
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.id_table = snd_vortex_ids, |
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.probe = snd_vortex_probe, |
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.remove = __devexit_p(snd_vortex_remove), |
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}; |
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// initialization of the module |
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static int __init alsa_card_vortex_init(void) { |
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int err; |
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if ((err = pci_module_init(&driver)) < 0) { |
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#ifdef MODULE |
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printk(KERN_ERR "Aureal soundcard not found " "or device busy\n"); |
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#endif |
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return err; |
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} |
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return 0; |
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} |
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// clean up the module |
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static void __exit alsa_card_vortex_exit(void) { |
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pci_unregister_driver(&driver); |
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} |
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module_init(alsa_card_vortex_init) |
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module_exit(alsa_card_vortex_exit) |
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// for old kernels only |
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#ifdef EXPORT_NO_SYMBOLS |
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EXPORT_NO_SYMBOLS; |
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#endif |
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