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116 lines
2.5 KiB
116 lines
2.5 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright (c) by Jaroslav Kysela <[email protected]> |
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* and (c) 1999 Steve Ratcliffe <[email protected]> |
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* Copyright (C) 1999-2000 Takashi Iwai <[email protected]> |
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* |
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* Emu8000 synth plug-in routine |
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*/ |
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#include "emu8000_local.h" |
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#include <linux/init.h> |
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#include <linux/module.h> |
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#include <sound/initval.h> |
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MODULE_AUTHOR("Takashi Iwai, Steve Ratcliffe"); |
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MODULE_DESCRIPTION("Emu8000 synth plug-in routine"); |
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MODULE_LICENSE("GPL"); |
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/*----------------------------------------------------------------*/ |
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/* |
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* create a new hardware dependent device for Emu8000 |
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*/ |
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static int snd_emu8000_probe(struct device *_dev) |
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{ |
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struct snd_seq_device *dev = to_seq_dev(_dev); |
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struct snd_emu8000 *hw; |
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struct snd_emux *emu; |
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hw = *(struct snd_emu8000**)SNDRV_SEQ_DEVICE_ARGPTR(dev); |
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if (hw == NULL) |
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return -EINVAL; |
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if (hw->emu) |
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return -EBUSY; /* already exists..? */ |
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if (snd_emux_new(&emu) < 0) |
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return -ENOMEM; |
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hw->emu = emu; |
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snd_emu8000_ops_setup(hw); |
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emu->hw = hw; |
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emu->max_voices = EMU8000_DRAM_VOICES; |
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emu->num_ports = hw->seq_ports; |
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if (hw->memhdr) { |
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snd_printk(KERN_ERR "memhdr is already initialized!?\n"); |
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snd_util_memhdr_free(hw->memhdr); |
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} |
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hw->memhdr = snd_util_memhdr_new(hw->mem_size); |
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if (hw->memhdr == NULL) { |
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snd_emux_free(emu); |
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hw->emu = NULL; |
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return -ENOMEM; |
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} |
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emu->memhdr = hw->memhdr; |
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emu->midi_ports = hw->seq_ports < 2 ? hw->seq_ports : 2; /* number of virmidi ports */ |
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emu->midi_devidx = 1; |
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emu->linear_panning = 1; |
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emu->hwdep_idx = 2; /* FIXED */ |
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if (snd_emux_register(emu, dev->card, hw->index, "Emu8000") < 0) { |
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snd_emux_free(emu); |
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snd_util_memhdr_free(hw->memhdr); |
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hw->emu = NULL; |
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hw->memhdr = NULL; |
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return -ENOMEM; |
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} |
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if (hw->mem_size > 0) |
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snd_emu8000_pcm_new(dev->card, hw, 1); |
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dev->driver_data = hw; |
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return 0; |
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} |
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/* |
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* free all resources |
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*/ |
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static int snd_emu8000_remove(struct device *_dev) |
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{ |
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struct snd_seq_device *dev = to_seq_dev(_dev); |
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struct snd_emu8000 *hw; |
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if (dev->driver_data == NULL) |
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return 0; /* no synth was allocated actually */ |
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hw = dev->driver_data; |
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if (hw->pcm) |
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snd_device_free(dev->card, hw->pcm); |
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snd_emux_free(hw->emu); |
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snd_util_memhdr_free(hw->memhdr); |
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hw->emu = NULL; |
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hw->memhdr = NULL; |
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return 0; |
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} |
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/* |
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* INIT part |
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*/ |
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static struct snd_seq_driver emu8000_driver = { |
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.driver = { |
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.name = KBUILD_MODNAME, |
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.probe = snd_emu8000_probe, |
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.remove = snd_emu8000_remove, |
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}, |
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.id = SNDRV_SEQ_DEV_ID_EMU8000, |
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.argsize = sizeof(struct snd_emu8000 *), |
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}; |
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module_snd_seq_driver(emu8000_driver);
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