cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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emu10k1.c (7651B)


      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 *  The driver for the EMU10K1 (SB Live!) based soundcards
      4 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
      5 *
      6 *  Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
      7 *      Added support for Audigy 2 Value.
      8 */
      9
     10#include <linux/init.h>
     11#include <linux/pci.h>
     12#include <linux/time.h>
     13#include <linux/module.h>
     14#include <sound/core.h>
     15#include <sound/emu10k1.h>
     16#include <sound/initval.h>
     17
     18MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
     19MODULE_DESCRIPTION("EMU10K1");
     20MODULE_LICENSE("GPL");
     21
     22#if IS_ENABLED(CONFIG_SND_SEQUENCER)
     23#define ENABLE_SYNTH
     24#include <sound/emu10k1_synth.h>
     25#endif
     26
     27static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
     28static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
     29static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
     30static int extin[SNDRV_CARDS];
     31static int extout[SNDRV_CARDS];
     32static int seq_ports[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 4};
     33static int max_synth_voices[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 64};
     34static int max_buffer_size[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 128};
     35static bool enable_ir[SNDRV_CARDS];
     36static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
     37static uint delay_pcm_irq[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
     38
     39module_param_array(index, int, NULL, 0444);
     40MODULE_PARM_DESC(index, "Index value for the EMU10K1 soundcard.");
     41module_param_array(id, charp, NULL, 0444);
     42MODULE_PARM_DESC(id, "ID string for the EMU10K1 soundcard.");
     43module_param_array(enable, bool, NULL, 0444);
     44MODULE_PARM_DESC(enable, "Enable the EMU10K1 soundcard.");
     45module_param_array(extin, int, NULL, 0444);
     46MODULE_PARM_DESC(extin, "Available external inputs for FX8010. Zero=default.");
     47module_param_array(extout, int, NULL, 0444);
     48MODULE_PARM_DESC(extout, "Available external outputs for FX8010. Zero=default.");
     49module_param_array(seq_ports, int, NULL, 0444);
     50MODULE_PARM_DESC(seq_ports, "Allocated sequencer ports for internal synthesizer.");
     51module_param_array(max_synth_voices, int, NULL, 0444);
     52MODULE_PARM_DESC(max_synth_voices, "Maximum number of voices for WaveTable.");
     53module_param_array(max_buffer_size, int, NULL, 0444);
     54MODULE_PARM_DESC(max_buffer_size, "Maximum sample buffer size in MB.");
     55module_param_array(enable_ir, bool, NULL, 0444);
     56MODULE_PARM_DESC(enable_ir, "Enable IR.");
     57module_param_array(subsystem, uint, NULL, 0444);
     58MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
     59module_param_array(delay_pcm_irq, uint, NULL, 0444);
     60MODULE_PARM_DESC(delay_pcm_irq, "Delay PCM interrupt by specified number of samples (default 0).");
     61/*
     62 * Class 0401: 1102:0008 (rev 00) Subsystem: 1102:1001 -> Audigy2 Value  Model:SB0400
     63 */
     64static const struct pci_device_id snd_emu10k1_ids[] = {
     65	{ PCI_VDEVICE(CREATIVE, 0x0002), 0 },	/* EMU10K1 */
     66	{ PCI_VDEVICE(CREATIVE, 0x0004), 1 },	/* Audigy */
     67	{ PCI_VDEVICE(CREATIVE, 0x0008), 1 },	/* Audigy 2 Value SB0400 */
     68	{ 0, }
     69};
     70
     71/*
     72 * Audigy 2 Value notes:
     73 * A_IOCFG Input (GPIO)
     74 * 0x400  = Front analog jack plugged in. (Green socket)
     75 * 0x1000 = Read analog jack plugged in. (Black socket)
     76 * 0x2000 = Center/LFE analog jack plugged in. (Orange socket)
     77 * A_IOCFG Output (GPIO)
     78 * 0x60 = Sound out of front Left.
     79 * Win sets it to 0xXX61
     80 */
     81
     82MODULE_DEVICE_TABLE(pci, snd_emu10k1_ids);
     83
     84static int snd_card_emu10k1_probe(struct pci_dev *pci,
     85				  const struct pci_device_id *pci_id)
     86{
     87	static int dev;
     88	struct snd_card *card;
     89	struct snd_emu10k1 *emu;
     90#ifdef ENABLE_SYNTH
     91	struct snd_seq_device *wave = NULL;
     92#endif
     93	int err;
     94
     95	if (dev >= SNDRV_CARDS)
     96        	return -ENODEV;
     97	if (!enable[dev]) {
     98		dev++;
     99		return -ENOENT;
    100	}
    101
    102	err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
    103				sizeof(*emu), &card);
    104	if (err < 0)
    105		return err;
    106	emu = card->private_data;
    107
    108	if (max_buffer_size[dev] < 32)
    109		max_buffer_size[dev] = 32;
    110	else if (max_buffer_size[dev] > 1024)
    111		max_buffer_size[dev] = 1024;
    112	err = snd_emu10k1_create(card, pci, extin[dev], extout[dev],
    113				 (long)max_buffer_size[dev] * 1024 * 1024,
    114				 enable_ir[dev], subsystem[dev]);
    115	if (err < 0)
    116		return err;
    117	emu->delay_pcm_irq = delay_pcm_irq[dev] & 0x1f;
    118	err = snd_emu10k1_pcm(emu, 0);
    119	if (err < 0)
    120		return err;
    121	err = snd_emu10k1_pcm_mic(emu, 1);
    122	if (err < 0)
    123		return err;
    124	err = snd_emu10k1_pcm_efx(emu, 2);
    125	if (err < 0)
    126		return err;
    127	/* This stores the periods table. */
    128	if (emu->card_capabilities->ca0151_chip) { /* P16V */	
    129		emu->p16v_buffer =
    130			snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV, 1024);
    131		if (!emu->p16v_buffer)
    132			return -ENOMEM;
    133	}
    134
    135	err = snd_emu10k1_mixer(emu, 0, 3);
    136	if (err < 0)
    137		return err;
    138	
    139	err = snd_emu10k1_timer(emu, 0);
    140	if (err < 0)
    141		return err;
    142
    143	err = snd_emu10k1_pcm_multi(emu, 3);
    144	if (err < 0)
    145		return err;
    146	if (emu->card_capabilities->ca0151_chip) { /* P16V */
    147		err = snd_p16v_pcm(emu, 4);
    148		if (err < 0)
    149			return err;
    150	}
    151	if (emu->audigy) {
    152		err = snd_emu10k1_audigy_midi(emu);
    153		if (err < 0)
    154			return err;
    155	} else {
    156		err = snd_emu10k1_midi(emu);
    157		if (err < 0)
    158			return err;
    159	}
    160	err = snd_emu10k1_fx8010_new(emu, 0);
    161	if (err < 0)
    162		return err;
    163#ifdef ENABLE_SYNTH
    164	if (snd_seq_device_new(card, 1, SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH,
    165			       sizeof(struct snd_emu10k1_synth_arg), &wave) < 0 ||
    166	    wave == NULL) {
    167		dev_warn(emu->card->dev,
    168			 "can't initialize Emu10k1 wavetable synth\n");
    169	} else {
    170		struct snd_emu10k1_synth_arg *arg;
    171		arg = SNDRV_SEQ_DEVICE_ARGPTR(wave);
    172		strcpy(wave->name, "Emu-10k1 Synth");
    173		arg->hwptr = emu;
    174		arg->index = 1;
    175		arg->seq_ports = seq_ports[dev];
    176		arg->max_voices = max_synth_voices[dev];
    177	}
    178#endif
    179 
    180	strscpy(card->driver, emu->card_capabilities->driver,
    181		sizeof(card->driver));
    182	strscpy(card->shortname, emu->card_capabilities->name,
    183		sizeof(card->shortname));
    184	snprintf(card->longname, sizeof(card->longname),
    185		 "%s (rev.%d, serial:0x%x) at 0x%lx, irq %i",
    186		 card->shortname, emu->revision, emu->serial, emu->port, emu->irq);
    187
    188	err = snd_card_register(card);
    189	if (err < 0)
    190		return err;
    191
    192	if (emu->card_capabilities->emu_model)
    193		schedule_delayed_work(&emu->emu1010.firmware_work, 0);
    194
    195	pci_set_drvdata(pci, card);
    196	dev++;
    197	return 0;
    198}
    199
    200#ifdef CONFIG_PM_SLEEP
    201static int snd_emu10k1_suspend(struct device *dev)
    202{
    203	struct snd_card *card = dev_get_drvdata(dev);
    204	struct snd_emu10k1 *emu = card->private_data;
    205
    206	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
    207
    208	emu->suspend = 1;
    209
    210	cancel_delayed_work_sync(&emu->emu1010.firmware_work);
    211
    212	snd_ac97_suspend(emu->ac97);
    213
    214	snd_emu10k1_efx_suspend(emu);
    215	snd_emu10k1_suspend_regs(emu);
    216	if (emu->card_capabilities->ca0151_chip)
    217		snd_p16v_suspend(emu);
    218
    219	snd_emu10k1_done(emu);
    220	return 0;
    221}
    222
    223static int snd_emu10k1_resume(struct device *dev)
    224{
    225	struct snd_card *card = dev_get_drvdata(dev);
    226	struct snd_emu10k1 *emu = card->private_data;
    227
    228	snd_emu10k1_resume_init(emu);
    229	snd_emu10k1_efx_resume(emu);
    230	snd_ac97_resume(emu->ac97);
    231	snd_emu10k1_resume_regs(emu);
    232
    233	if (emu->card_capabilities->ca0151_chip)
    234		snd_p16v_resume(emu);
    235
    236	emu->suspend = 0;
    237
    238	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
    239
    240	if (emu->card_capabilities->emu_model)
    241		schedule_delayed_work(&emu->emu1010.firmware_work, 0);
    242
    243	return 0;
    244}
    245
    246static SIMPLE_DEV_PM_OPS(snd_emu10k1_pm, snd_emu10k1_suspend, snd_emu10k1_resume);
    247#define SND_EMU10K1_PM_OPS	&snd_emu10k1_pm
    248#else
    249#define SND_EMU10K1_PM_OPS	NULL
    250#endif /* CONFIG_PM_SLEEP */
    251
    252static struct pci_driver emu10k1_driver = {
    253	.name = KBUILD_MODNAME,
    254	.id_table = snd_emu10k1_ids,
    255	.probe = snd_card_emu10k1_probe,
    256	.driver = {
    257		.pm = SND_EMU10K1_PM_OPS,
    258	},
    259};
    260
    261module_pci_driver(emu10k1_driver);