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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>4 * and (c) 1999 Steve Ratcliffe <steve@parabola.demon.co.uk>5 * Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de>6 *7 * Emu8000 synth plug-in routine8 */9 10#include "emu8000_local.h"11#include <linux/init.h>12#include <linux/module.h>13#include <sound/initval.h>14 15MODULE_AUTHOR("Takashi Iwai, Steve Ratcliffe");16MODULE_DESCRIPTION("Emu8000 synth plug-in routine");17MODULE_LICENSE("GPL");18 19/*----------------------------------------------------------------*/20 21/*22 * create a new hardware dependent device for Emu800023 */24static int snd_emu8000_probe(struct device *_dev)25{26 struct snd_seq_device *dev = to_seq_dev(_dev);27 struct snd_emu8000 *hw;28 struct snd_emux *emu;29 30 hw = *(struct snd_emu8000**)SNDRV_SEQ_DEVICE_ARGPTR(dev);31 if (hw == NULL)32 return -EINVAL;33 34 if (hw->emu)35 return -EBUSY; /* already exists..? */36 37 if (snd_emux_new(&emu) < 0)38 return -ENOMEM;39 40 hw->emu = emu;41 snd_emu8000_ops_setup(hw);42 43 emu->hw = hw;44 emu->max_voices = EMU8000_DRAM_VOICES;45 emu->num_ports = hw->seq_ports;46 47 if (hw->memhdr) {48 dev_err(hw->card->dev, "memhdr is already initialized!?\n");49 snd_util_memhdr_free(hw->memhdr);50 }51 hw->memhdr = snd_util_memhdr_new(hw->mem_size);52 if (hw->memhdr == NULL) {53 snd_emux_free(emu);54 hw->emu = NULL;55 return -ENOMEM;56 }57 58 emu->memhdr = hw->memhdr;59 emu->midi_ports = hw->seq_ports < 2 ? hw->seq_ports : 2; /* number of virmidi ports */60 emu->midi_devidx = 1;61 emu->linear_panning = 1;62 emu->hwdep_idx = 2; /* FIXED */63 64 if (snd_emux_register(emu, dev->card, hw->index, "Emu8000") < 0) {65 snd_emux_free(emu);66 snd_util_memhdr_free(hw->memhdr);67 hw->emu = NULL;68 hw->memhdr = NULL;69 return -ENOMEM;70 }71 72 if (hw->mem_size > 0)73 snd_emu8000_pcm_new(dev->card, hw, 1);74 75 dev->driver_data = hw;76 77 return 0;78}79 80 81/*82 * free all resources83 */84static int snd_emu8000_remove(struct device *_dev)85{86 struct snd_seq_device *dev = to_seq_dev(_dev);87 struct snd_emu8000 *hw;88 89 if (dev->driver_data == NULL)90 return 0; /* no synth was allocated actually */91 92 hw = dev->driver_data;93 if (hw->pcm)94 snd_device_free(dev->card, hw->pcm);95 snd_emux_free(hw->emu);96 snd_util_memhdr_free(hw->memhdr);97 hw->emu = NULL;98 hw->memhdr = NULL;99 return 0;100}101 102/*103 * INIT part104 */105 106static struct snd_seq_driver emu8000_driver = {107 .driver = {108 .name = KBUILD_MODNAME,109 .probe = snd_emu8000_probe,110 .remove = snd_emu8000_remove,111 },112 .id = SNDRV_SEQ_DEV_ID_EMU8000,113 .argsize = sizeof(struct snd_emu8000 *),114};115 116module_snd_seq_driver(emu8000_driver);117