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381 lines
9.6 KiB
381 lines
9.6 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* ALSA driver for the Aureal Vortex family of soundprocessors. |
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* Author: Manuel Jander ([email protected]) |
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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 Muizelaar 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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#include <linux/module.h> |
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#include <linux/dma-mapping.h> |
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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 bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; |
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static int pcifix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 255 }; |
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module_param_array(index, int, NULL, 0444); |
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MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); |
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module_param_array(id, charp, NULL, 0444); |
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MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); |
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module_param_array(enable, bool, NULL, 0444); |
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MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); |
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module_param_array(pcifix, int, NULL, 0444); |
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MODULE_PARM_DESC(pcifix, "Enable VIA-workaround for " CARD_NAME " soundcard."); |
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MODULE_DESCRIPTION("Aureal vortex"); |
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MODULE_LICENSE("GPL"); |
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MODULE_DEVICE_TABLE(pci, snd_vortex_ids); |
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static void vortex_fix_latency(struct pci_dev *vortex) |
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{ |
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int rc; |
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if (!(rc = pci_write_config_byte(vortex, 0x40, 0xff))) { |
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dev_info(&vortex->dev, "vortex latency is 0xff\n"); |
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} else { |
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dev_warn(&vortex->dev, |
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"could not set vortex latency: pci error 0x%x\n", rc); |
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} |
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} |
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static void vortex_fix_agp_bridge(struct pci_dev *via) |
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{ |
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int rc; |
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u8 value; |
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/* |
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* only set the bit (Extend PCI#2 Internal Master for |
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* Efficient Handling of Dummy Requests) if the can |
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* read the config and it is not already set |
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*/ |
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if (!(rc = pci_read_config_byte(via, 0x42, &value)) |
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&& ((value & 0x10) |
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|| !(rc = pci_write_config_byte(via, 0x42, value | 0x10)))) { |
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dev_info(&via->dev, "bridge config is 0x%x\n", value | 0x10); |
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} else { |
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dev_warn(&via->dev, |
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"could not set vortex latency: pci error 0x%x\n", rc); |
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} |
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} |
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static void snd_vortex_workaround(struct pci_dev *vortex, int fix) |
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{ |
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struct pci_dev *via = NULL; |
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/* autodetect if workarounds are required */ |
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if (fix == 255) { |
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/* VIA KT133 */ |
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via = pci_get_device(PCI_VENDOR_ID_VIA, |
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PCI_DEVICE_ID_VIA_8365_1, NULL); |
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/* VIA Apollo */ |
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if (via == NULL) { |
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via = pci_get_device(PCI_VENDOR_ID_VIA, |
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PCI_DEVICE_ID_VIA_82C598_1, NULL); |
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/* AMD Irongate */ |
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if (via == NULL) |
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via = pci_get_device(PCI_VENDOR_ID_AMD, |
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PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL); |
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} |
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if (via) { |
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dev_info(&vortex->dev, |
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"Activating latency workaround...\n"); |
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vortex_fix_latency(vortex); |
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vortex_fix_agp_bridge(via); |
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} |
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} else { |
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if (fix & 0x1) |
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vortex_fix_latency(vortex); |
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if ((fix & 0x2) && (via = pci_get_device(PCI_VENDOR_ID_VIA, |
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PCI_DEVICE_ID_VIA_8365_1, NULL))) |
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vortex_fix_agp_bridge(via); |
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if ((fix & 0x4) && (via = pci_get_device(PCI_VENDOR_ID_VIA, |
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PCI_DEVICE_ID_VIA_82C598_1, NULL))) |
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vortex_fix_agp_bridge(via); |
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if ((fix & 0x8) && (via = pci_get_device(PCI_VENDOR_ID_AMD, |
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PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL))) |
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vortex_fix_agp_bridge(via); |
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} |
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pci_dev_put(via); |
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} |
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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(struct snd_device *device) |
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{ |
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vortex_t *vortex = device->device_data; |
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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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free_irq(vortex->irq, vortex); |
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iounmap(vortex->mmio); |
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pci_release_regions(vortex->pci_dev); |
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pci_disable_device(vortex->pci_dev); |
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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 |
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snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip) |
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{ |
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vortex_t *chip; |
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int err; |
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static const struct snd_device_ops 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 (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) { |
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dev_err(card->dev, "error to set DMA mask\n"); |
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pci_disable_device(pci); |
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return -ENXIO; |
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} |
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chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
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if (chip == NULL) { |
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pci_disable_device(pci); |
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return -ENOMEM; |
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} |
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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 = pci_ioremap_bar(pci, 0); |
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if (!chip->mmio) { |
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dev_err(card->dev, "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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* interrupts 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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dev_err(card->dev, "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, |
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IRQF_SHARED, KBUILD_MODNAME, |
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chip)) != 0) { |
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dev_err(card->dev, "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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card->sync_irq = chip->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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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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iounmap(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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kfree(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 |
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snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) |
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{ |
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static int dev; |
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struct snd_card *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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err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, |
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0, &card); |
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if (err < 0) |
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return err; |
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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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snd_vortex_workaround(pci, pcifix[dev]); |
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// Card details needed in snd_vortex_midi |
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strcpy(card->driver, CARD_NAME_SHORT); |
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sprintf(card->shortname, "Aureal Vortex %s", 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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// (4) Alloc components. |
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err = snd_vortex_mixer(chip); |
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if (err < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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// ADB pcm. |
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err = snd_vortex_new_pcm(chip, VORTEX_PCM_ADB, NR_PCM); |
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if (err < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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#ifndef CHIP_AU8820 |
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// ADB SPDIF |
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if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_SPDIF, 1)) < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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// A3D |
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if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_A3D, NR_A3D)) < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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#endif |
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/* |
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// ADB I2S |
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if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_I2S, 1)) < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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*/ |
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#ifndef CHIP_AU8810 |
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// WT pcm. |
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if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_WT, 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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#endif |
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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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vortex_gameport_register(chip); |
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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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dev_err(card->dev, "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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if ((err = pci_read_config_word(pci, PCI_DEVICE_ID, |
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&(chip->device))) < 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 = pci_read_config_word(pci, PCI_VENDOR_ID, |
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&(chip->vendor))) < 0) { |
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snd_card_free(card); |
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return err; |
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} |
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chip->rev = pci->revision; |
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#ifdef CHIP_AU8830 |
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if ((chip->rev) != 0xfe && (chip->rev) != 0xfa) { |
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dev_alert(card->dev, |
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"The revision (%x) of your card has not been seen before.\n", |
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chip->rev); |
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dev_alert(card->dev, |
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"Please email the results of 'lspci -vv' to [email protected].\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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#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, card); |
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dev++; |
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vortex_connect_default(chip, 1); |
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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 snd_vortex_remove(struct pci_dev *pci) |
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{ |
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snd_card_free(pci_get_drvdata(pci)); |
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} |
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// pci_driver definition |
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static struct pci_driver vortex_driver = { |
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.name = KBUILD_MODNAME, |
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.id_table = snd_vortex_ids, |
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.probe = snd_vortex_probe, |
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.remove = snd_vortex_remove, |
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}; |
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module_pci_driver(vortex_driver);
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