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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sc6000.c (17060B)


      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 *  Driver for Gallant SC-6000 soundcard. This card is also known as
      4 *  Audio Excel DSP 16 or Zoltrix AV302.
      5 *  These cards use CompuMedia ASC-9308 chip + AD1848 codec.
      6 *  SC-6600 and SC-7000 cards are also supported. They are based on
      7 *  CompuMedia ASC-9408 chip and CS4231 codec.
      8 *
      9 *  Copyright (C) 2007 Krzysztof Helt <krzysztof.h1@wp.pl>
     10 *
     11 *  I don't have documentation for this card. I used the driver
     12 *  for OSS/Free included in the kernel source as reference.
     13 */
     14
     15#include <linux/module.h>
     16#include <linux/delay.h>
     17#include <linux/isa.h>
     18#include <linux/io.h>
     19#include <asm/dma.h>
     20#include <sound/core.h>
     21#include <sound/wss.h>
     22#include <sound/opl3.h>
     23#include <sound/mpu401.h>
     24#include <sound/control.h>
     25#define SNDRV_LEGACY_FIND_FREE_IRQ
     26#define SNDRV_LEGACY_FIND_FREE_DMA
     27#include <sound/initval.h>
     28
     29MODULE_AUTHOR("Krzysztof Helt");
     30MODULE_DESCRIPTION("Gallant SC-6000");
     31MODULE_LICENSE("GPL");
     32
     33static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
     34static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
     35static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
     36static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220, 0x240 */
     37static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5, 7, 9, 10, 11 */
     38static long mss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x530, 0xe80 */
     39static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
     40						/* 0x300, 0x310, 0x320, 0x330 */
     41static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5, 7, 9, 10, 0 */
     42static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0, 1, 3 */
     43static bool joystick[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = false };
     44
     45module_param_array(index, int, NULL, 0444);
     46MODULE_PARM_DESC(index, "Index value for sc-6000 based soundcard.");
     47module_param_array(id, charp, NULL, 0444);
     48MODULE_PARM_DESC(id, "ID string for sc-6000 based soundcard.");
     49module_param_array(enable, bool, NULL, 0444);
     50MODULE_PARM_DESC(enable, "Enable sc-6000 based soundcard.");
     51module_param_hw_array(port, long, ioport, NULL, 0444);
     52MODULE_PARM_DESC(port, "Port # for sc-6000 driver.");
     53module_param_hw_array(mss_port, long, ioport, NULL, 0444);
     54MODULE_PARM_DESC(mss_port, "MSS Port # for sc-6000 driver.");
     55module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
     56MODULE_PARM_DESC(mpu_port, "MPU-401 port # for sc-6000 driver.");
     57module_param_hw_array(irq, int, irq, NULL, 0444);
     58MODULE_PARM_DESC(irq, "IRQ # for sc-6000 driver.");
     59module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
     60MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for sc-6000 driver.");
     61module_param_hw_array(dma, int, dma, NULL, 0444);
     62MODULE_PARM_DESC(dma, "DMA # for sc-6000 driver.");
     63module_param_array(joystick, bool, NULL, 0444);
     64MODULE_PARM_DESC(joystick, "Enable gameport.");
     65
     66/*
     67 * Commands of SC6000's DSP (SBPRO+special).
     68 * Some of them are COMMAND_xx, in the future they may change.
     69 */
     70#define WRITE_MDIRQ_CFG	0x50	/* Set M&I&DRQ mask (the real config)	*/
     71#define COMMAND_52	0x52	/*					*/
     72#define READ_HARD_CFG	0x58	/* Read Hardware Config (I/O base etc)	*/
     73#define COMMAND_5C	0x5c	/*					*/
     74#define COMMAND_60	0x60	/*					*/
     75#define COMMAND_66	0x66	/*					*/
     76#define COMMAND_6C	0x6c	/*					*/
     77#define COMMAND_6E	0x6e	/*					*/
     78#define COMMAND_88	0x88	/* Unknown command 			*/
     79#define DSP_INIT_MSS	0x8c	/* Enable Microsoft Sound System mode	*/
     80#define COMMAND_C5	0xc5	/*					*/
     81#define GET_DSP_VERSION	0xe1	/* Get DSP Version			*/
     82#define GET_DSP_COPYRIGHT 0xe3	/* Get DSP Copyright			*/
     83
     84/*
     85 * Offsets of SC6000 DSP I/O ports. The offset is added to base I/O port
     86 * to have the actual I/O port.
     87 * Register permissions are:
     88 * (wo) == Write Only
     89 * (ro) == Read  Only
     90 * (w-) == Write
     91 * (r-) == Read
     92 */
     93#define DSP_RESET	0x06	/* offset of DSP RESET		(wo) */
     94#define DSP_READ	0x0a	/* offset of DSP READ		(ro) */
     95#define DSP_WRITE	0x0c	/* offset of DSP WRITE		(w-) */
     96#define DSP_COMMAND	0x0c	/* offset of DSP COMMAND	(w-) */
     97#define DSP_STATUS	0x0c	/* offset of DSP STATUS		(r-) */
     98#define DSP_DATAVAIL	0x0e	/* offset of DSP DATA AVAILABLE	(ro) */
     99
    100#define PFX "sc6000: "
    101#define DRV_NAME "SC-6000"
    102
    103/* hardware dependent functions */
    104
    105/*
    106 * sc6000_irq_to_softcfg - Decode irq number into cfg code.
    107 */
    108static unsigned char sc6000_irq_to_softcfg(int irq)
    109{
    110	unsigned char val = 0;
    111
    112	switch (irq) {
    113	case 5:
    114		val = 0x28;
    115		break;
    116	case 7:
    117		val = 0x8;
    118		break;
    119	case 9:
    120		val = 0x10;
    121		break;
    122	case 10:
    123		val = 0x18;
    124		break;
    125	case 11:
    126		val = 0x20;
    127		break;
    128	default:
    129		break;
    130	}
    131	return val;
    132}
    133
    134/*
    135 * sc6000_dma_to_softcfg - Decode dma number into cfg code.
    136 */
    137static unsigned char sc6000_dma_to_softcfg(int dma)
    138{
    139	unsigned char val = 0;
    140
    141	switch (dma) {
    142	case 0:
    143		val = 1;
    144		break;
    145	case 1:
    146		val = 2;
    147		break;
    148	case 3:
    149		val = 3;
    150		break;
    151	default:
    152		break;
    153	}
    154	return val;
    155}
    156
    157/*
    158 * sc6000_mpu_irq_to_softcfg - Decode MPU-401 irq number into cfg code.
    159 */
    160static unsigned char sc6000_mpu_irq_to_softcfg(int mpu_irq)
    161{
    162	unsigned char val = 0;
    163
    164	switch (mpu_irq) {
    165	case 5:
    166		val = 4;
    167		break;
    168	case 7:
    169		val = 0x44;
    170		break;
    171	case 9:
    172		val = 0x84;
    173		break;
    174	case 10:
    175		val = 0xc4;
    176		break;
    177	default:
    178		break;
    179	}
    180	return val;
    181}
    182
    183static int sc6000_wait_data(char __iomem *vport)
    184{
    185	int loop = 1000;
    186	unsigned char val = 0;
    187
    188	do {
    189		val = ioread8(vport + DSP_DATAVAIL);
    190		if (val & 0x80)
    191			return 0;
    192		cpu_relax();
    193	} while (loop--);
    194
    195	return -EAGAIN;
    196}
    197
    198static int sc6000_read(char __iomem *vport)
    199{
    200	if (sc6000_wait_data(vport))
    201		return -EBUSY;
    202
    203	return ioread8(vport + DSP_READ);
    204
    205}
    206
    207static int sc6000_write(char __iomem *vport, int cmd)
    208{
    209	unsigned char val;
    210	int loop = 500000;
    211
    212	do {
    213		val = ioread8(vport + DSP_STATUS);
    214		/*
    215		 * DSP ready to receive data if bit 7 of val == 0
    216		 */
    217		if (!(val & 0x80)) {
    218			iowrite8(cmd, vport + DSP_COMMAND);
    219			return 0;
    220		}
    221		cpu_relax();
    222	} while (loop--);
    223
    224	snd_printk(KERN_ERR "DSP Command (0x%x) timeout.\n", cmd);
    225
    226	return -EIO;
    227}
    228
    229static int sc6000_dsp_get_answer(char __iomem *vport, int command,
    230				 char *data, int data_len)
    231{
    232	int len = 0;
    233
    234	if (sc6000_write(vport, command)) {
    235		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", command);
    236		return -EIO;
    237	}
    238
    239	do {
    240		int val = sc6000_read(vport);
    241
    242		if (val < 0)
    243			break;
    244
    245		data[len++] = val;
    246
    247	} while (len < data_len);
    248
    249	/*
    250	 * If no more data available, return to the caller, no error if len>0.
    251	 * We have no other way to know when the string is finished.
    252	 */
    253	return len ? len : -EIO;
    254}
    255
    256static int sc6000_dsp_reset(char __iomem *vport)
    257{
    258	iowrite8(1, vport + DSP_RESET);
    259	udelay(10);
    260	iowrite8(0, vport + DSP_RESET);
    261	udelay(20);
    262	if (sc6000_read(vport) == 0xaa)
    263		return 0;
    264	return -ENODEV;
    265}
    266
    267/* detection and initialization */
    268static int sc6000_hw_cfg_write(char __iomem *vport, const int *cfg)
    269{
    270	if (sc6000_write(vport, COMMAND_6C) < 0) {
    271		snd_printk(KERN_WARNING "CMD 0x%x: failed!\n", COMMAND_6C);
    272		return -EIO;
    273	}
    274	if (sc6000_write(vport, COMMAND_5C) < 0) {
    275		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", COMMAND_5C);
    276		return -EIO;
    277	}
    278	if (sc6000_write(vport, cfg[0]) < 0) {
    279		snd_printk(KERN_ERR "DATA 0x%x: failed!\n", cfg[0]);
    280		return -EIO;
    281	}
    282	if (sc6000_write(vport, cfg[1]) < 0) {
    283		snd_printk(KERN_ERR "DATA 0x%x: failed!\n", cfg[1]);
    284		return -EIO;
    285	}
    286	if (sc6000_write(vport, COMMAND_C5) < 0) {
    287		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", COMMAND_C5);
    288		return -EIO;
    289	}
    290
    291	return 0;
    292}
    293
    294static int sc6000_cfg_write(char __iomem *vport, unsigned char softcfg)
    295{
    296
    297	if (sc6000_write(vport, WRITE_MDIRQ_CFG)) {
    298		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG);
    299		return -EIO;
    300	}
    301	if (sc6000_write(vport, softcfg)) {
    302		snd_printk(KERN_ERR "sc6000_cfg_write: failed!\n");
    303		return -EIO;
    304	}
    305	return 0;
    306}
    307
    308static int sc6000_setup_board(char __iomem *vport, int config)
    309{
    310	int loop = 10;
    311
    312	do {
    313		if (sc6000_write(vport, COMMAND_88)) {
    314			snd_printk(KERN_ERR "CMD 0x%x: failed!\n",
    315				   COMMAND_88);
    316			return -EIO;
    317		}
    318	} while ((sc6000_wait_data(vport) < 0) && loop--);
    319
    320	if (sc6000_read(vport) < 0) {
    321		snd_printk(KERN_ERR "sc6000_read after CMD 0x%x: failed\n",
    322			   COMMAND_88);
    323		return -EIO;
    324	}
    325
    326	if (sc6000_cfg_write(vport, config))
    327		return -ENODEV;
    328
    329	return 0;
    330}
    331
    332static int sc6000_init_mss(char __iomem *vport, int config,
    333			   char __iomem *vmss_port, int mss_config)
    334{
    335	if (sc6000_write(vport, DSP_INIT_MSS)) {
    336		snd_printk(KERN_ERR "sc6000_init_mss [0x%x]: failed!\n",
    337			   DSP_INIT_MSS);
    338		return -EIO;
    339	}
    340
    341	msleep(10);
    342
    343	if (sc6000_cfg_write(vport, config))
    344		return -EIO;
    345
    346	iowrite8(mss_config, vmss_port);
    347
    348	return 0;
    349}
    350
    351static void sc6000_hw_cfg_encode(char __iomem *vport, int *cfg,
    352				 long xport, long xmpu,
    353				 long xmss_port, int joystick)
    354{
    355	cfg[0] = 0;
    356	cfg[1] = 0;
    357	if (xport == 0x240)
    358		cfg[0] |= 1;
    359	if (xmpu != SNDRV_AUTO_PORT) {
    360		cfg[0] |= (xmpu & 0x30) >> 2;
    361		cfg[1] |= 0x20;
    362	}
    363	if (xmss_port == 0xe80)
    364		cfg[0] |= 0x10;
    365	cfg[0] |= 0x40;		/* always set */
    366	if (!joystick)
    367		cfg[0] |= 0x02;
    368	cfg[1] |= 0x80;		/* enable WSS system */
    369	cfg[1] &= ~0x40;	/* disable IDE */
    370	snd_printd("hw cfg %x, %x\n", cfg[0], cfg[1]);
    371}
    372
    373static int sc6000_init_board(char __iomem *vport,
    374			     char __iomem *vmss_port, int dev)
    375{
    376	char answer[15];
    377	char version[2];
    378	int mss_config = sc6000_irq_to_softcfg(irq[dev]) |
    379			 sc6000_dma_to_softcfg(dma[dev]);
    380	int config = mss_config |
    381		     sc6000_mpu_irq_to_softcfg(mpu_irq[dev]);
    382	int err;
    383	int old = 0;
    384
    385	err = sc6000_dsp_reset(vport);
    386	if (err < 0) {
    387		snd_printk(KERN_ERR "sc6000_dsp_reset: failed!\n");
    388		return err;
    389	}
    390
    391	memset(answer, 0, sizeof(answer));
    392	err = sc6000_dsp_get_answer(vport, GET_DSP_COPYRIGHT, answer, 15);
    393	if (err <= 0) {
    394		snd_printk(KERN_ERR "sc6000_dsp_copyright: failed!\n");
    395		return -ENODEV;
    396	}
    397	/*
    398	 * My SC-6000 card return "SC-6000" in DSPCopyright, so
    399	 * if we have something different, we have to be warned.
    400	 */
    401	if (strncmp("SC-6000", answer, 7))
    402		snd_printk(KERN_WARNING "Warning: non SC-6000 audio card!\n");
    403
    404	if (sc6000_dsp_get_answer(vport, GET_DSP_VERSION, version, 2) < 2) {
    405		snd_printk(KERN_ERR "sc6000_dsp_version: failed!\n");
    406		return -ENODEV;
    407	}
    408	printk(KERN_INFO PFX "Detected model: %s, DSP version %d.%d\n",
    409		answer, version[0], version[1]);
    410
    411	/* set configuration */
    412	sc6000_write(vport, COMMAND_5C);
    413	if (sc6000_read(vport) < 0)
    414		old = 1;
    415
    416	if (!old) {
    417		int cfg[2];
    418		sc6000_hw_cfg_encode(vport, &cfg[0], port[dev], mpu_port[dev],
    419				     mss_port[dev], joystick[dev]);
    420		if (sc6000_hw_cfg_write(vport, cfg) < 0) {
    421			snd_printk(KERN_ERR "sc6000_hw_cfg_write: failed!\n");
    422			return -EIO;
    423		}
    424	}
    425	err = sc6000_setup_board(vport, config);
    426	if (err < 0) {
    427		snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
    428		return -ENODEV;
    429	}
    430
    431	sc6000_dsp_reset(vport);
    432
    433	if (!old) {
    434		sc6000_write(vport, COMMAND_60);
    435		sc6000_write(vport, 0x02);
    436		sc6000_dsp_reset(vport);
    437	}
    438
    439	err = sc6000_setup_board(vport, config);
    440	if (err < 0) {
    441		snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
    442		return -ENODEV;
    443	}
    444	err = sc6000_init_mss(vport, config, vmss_port, mss_config);
    445	if (err < 0) {
    446		snd_printk(KERN_ERR "Cannot initialize "
    447			   "Microsoft Sound System mode.\n");
    448		return -ENODEV;
    449	}
    450
    451	return 0;
    452}
    453
    454static int snd_sc6000_mixer(struct snd_wss *chip)
    455{
    456	struct snd_card *card = chip->card;
    457	struct snd_ctl_elem_id id1, id2;
    458	int err;
    459
    460	memset(&id1, 0, sizeof(id1));
    461	memset(&id2, 0, sizeof(id2));
    462	id1.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
    463	id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
    464	/* reassign AUX0 to FM */
    465	strcpy(id1.name, "Aux Playback Switch");
    466	strcpy(id2.name, "FM Playback Switch");
    467	err = snd_ctl_rename_id(card, &id1, &id2);
    468	if (err < 0)
    469		return err;
    470	strcpy(id1.name, "Aux Playback Volume");
    471	strcpy(id2.name, "FM Playback Volume");
    472	err = snd_ctl_rename_id(card, &id1, &id2);
    473	if (err < 0)
    474		return err;
    475	/* reassign AUX1 to CD */
    476	strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
    477	strcpy(id2.name, "CD Playback Switch");
    478	err = snd_ctl_rename_id(card, &id1, &id2);
    479	if (err < 0)
    480		return err;
    481	strcpy(id1.name, "Aux Playback Volume");
    482	strcpy(id2.name, "CD Playback Volume");
    483	err = snd_ctl_rename_id(card, &id1, &id2);
    484	if (err < 0)
    485		return err;
    486	return 0;
    487}
    488
    489static int snd_sc6000_match(struct device *devptr, unsigned int dev)
    490{
    491	if (!enable[dev])
    492		return 0;
    493	if (port[dev] == SNDRV_AUTO_PORT) {
    494		printk(KERN_ERR PFX "specify IO port\n");
    495		return 0;
    496	}
    497	if (mss_port[dev] == SNDRV_AUTO_PORT) {
    498		printk(KERN_ERR PFX "specify MSS port\n");
    499		return 0;
    500	}
    501	if (port[dev] != 0x220 && port[dev] != 0x240) {
    502		printk(KERN_ERR PFX "Port must be 0x220 or 0x240\n");
    503		return 0;
    504	}
    505	if (mss_port[dev] != 0x530 && mss_port[dev] != 0xe80) {
    506		printk(KERN_ERR PFX "MSS port must be 0x530 or 0xe80\n");
    507		return 0;
    508	}
    509	if (irq[dev] != SNDRV_AUTO_IRQ && !sc6000_irq_to_softcfg(irq[dev])) {
    510		printk(KERN_ERR PFX "invalid IRQ %d\n", irq[dev]);
    511		return 0;
    512	}
    513	if (dma[dev] != SNDRV_AUTO_DMA && !sc6000_dma_to_softcfg(dma[dev])) {
    514		printk(KERN_ERR PFX "invalid DMA %d\n", dma[dev]);
    515		return 0;
    516	}
    517	if (mpu_port[dev] != SNDRV_AUTO_PORT &&
    518	    (mpu_port[dev] & ~0x30L) != 0x300) {
    519		printk(KERN_ERR PFX "invalid MPU-401 port %lx\n",
    520			mpu_port[dev]);
    521		return 0;
    522	}
    523	if (mpu_port[dev] != SNDRV_AUTO_PORT &&
    524	    mpu_irq[dev] != SNDRV_AUTO_IRQ && mpu_irq[dev] != 0 &&
    525	    !sc6000_mpu_irq_to_softcfg(mpu_irq[dev])) {
    526		printk(KERN_ERR PFX "invalid MPU-401 IRQ %d\n", mpu_irq[dev]);
    527		return 0;
    528	}
    529	return 1;
    530}
    531
    532static void snd_sc6000_free(struct snd_card *card)
    533{
    534	char __iomem *vport = (char __force __iomem *)card->private_data;
    535
    536	if (vport)
    537		sc6000_setup_board(vport, 0);
    538}
    539
    540static int __snd_sc6000_probe(struct device *devptr, unsigned int dev)
    541{
    542	static const int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
    543	static const int possible_dmas[] = { 1, 3, 0, -1 };
    544	int err;
    545	int xirq = irq[dev];
    546	int xdma = dma[dev];
    547	struct snd_card *card;
    548	struct snd_wss *chip;
    549	struct snd_opl3 *opl3;
    550	char __iomem *vport;
    551	char __iomem *vmss_port;
    552
    553	err = snd_devm_card_new(devptr, index[dev], id[dev], THIS_MODULE,
    554				0, &card);
    555	if (err < 0)
    556		return err;
    557
    558	if (xirq == SNDRV_AUTO_IRQ) {
    559		xirq = snd_legacy_find_free_irq(possible_irqs);
    560		if (xirq < 0) {
    561			snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
    562			return -EBUSY;
    563		}
    564	}
    565
    566	if (xdma == SNDRV_AUTO_DMA) {
    567		xdma = snd_legacy_find_free_dma(possible_dmas);
    568		if (xdma < 0) {
    569			snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
    570			return -EBUSY;
    571		}
    572	}
    573
    574	if (!devm_request_region(devptr, port[dev], 0x10, DRV_NAME)) {
    575		snd_printk(KERN_ERR PFX
    576			   "I/O port region is already in use.\n");
    577		return -EBUSY;
    578	}
    579	vport = devm_ioport_map(devptr, port[dev], 0x10);
    580	if (!vport) {
    581		snd_printk(KERN_ERR PFX
    582			   "I/O port cannot be iomapped.\n");
    583		return -EBUSY;
    584	}
    585	card->private_data = (void __force *)vport;
    586
    587	/* to make it marked as used */
    588	if (!devm_request_region(devptr, mss_port[dev], 4, DRV_NAME)) {
    589		snd_printk(KERN_ERR PFX
    590			   "SC-6000 port I/O port region is already in use.\n");
    591		return -EBUSY;
    592	}
    593	vmss_port = devm_ioport_map(devptr, mss_port[dev], 4);
    594	if (!vmss_port) {
    595		snd_printk(KERN_ERR PFX
    596			   "MSS port I/O cannot be iomapped.\n");
    597		return -EBUSY;
    598	}
    599
    600	snd_printd("Initializing BASE[0x%lx] IRQ[%d] DMA[%d] MIRQ[%d]\n",
    601		   port[dev], xirq, xdma,
    602		   mpu_irq[dev] == SNDRV_AUTO_IRQ ? 0 : mpu_irq[dev]);
    603
    604	err = sc6000_init_board(vport, vmss_port, dev);
    605	if (err < 0)
    606		return err;
    607	card->private_free = snd_sc6000_free;
    608
    609	err = snd_wss_create(card, mss_port[dev] + 4,  -1, xirq, xdma, -1,
    610			     WSS_HW_DETECT, 0, &chip);
    611	if (err < 0)
    612		return err;
    613
    614	err = snd_wss_pcm(chip, 0);
    615	if (err < 0) {
    616		snd_printk(KERN_ERR PFX
    617			   "error creating new WSS PCM device\n");
    618		return err;
    619	}
    620	err = snd_wss_mixer(chip);
    621	if (err < 0) {
    622		snd_printk(KERN_ERR PFX "error creating new WSS mixer\n");
    623		return err;
    624	}
    625	err = snd_sc6000_mixer(chip);
    626	if (err < 0) {
    627		snd_printk(KERN_ERR PFX "the mixer rewrite failed\n");
    628		return err;
    629	}
    630	if (snd_opl3_create(card,
    631			    0x388, 0x388 + 2,
    632			    OPL3_HW_AUTO, 0, &opl3) < 0) {
    633		snd_printk(KERN_ERR PFX "no OPL device at 0x%x-0x%x ?\n",
    634			   0x388, 0x388 + 2);
    635	} else {
    636		err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
    637		if (err < 0)
    638			return err;
    639	}
    640
    641	if (mpu_port[dev] != SNDRV_AUTO_PORT) {
    642		if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
    643			mpu_irq[dev] = -1;
    644		if (snd_mpu401_uart_new(card, 0,
    645					MPU401_HW_MPU401,
    646					mpu_port[dev], 0,
    647					mpu_irq[dev], NULL) < 0)
    648			snd_printk(KERN_ERR "no MPU-401 device at 0x%lx ?\n",
    649					mpu_port[dev]);
    650	}
    651
    652	strcpy(card->driver, DRV_NAME);
    653	strcpy(card->shortname, "SC-6000");
    654	sprintf(card->longname, "Gallant SC-6000 at 0x%lx, irq %d, dma %d",
    655		mss_port[dev], xirq, xdma);
    656
    657	err = snd_card_register(card);
    658	if (err < 0)
    659		return err;
    660
    661	dev_set_drvdata(devptr, card);
    662	return 0;
    663}
    664
    665static int snd_sc6000_probe(struct device *devptr, unsigned int dev)
    666{
    667	return snd_card_free_on_error(devptr, __snd_sc6000_probe(devptr, dev));
    668}
    669
    670static struct isa_driver snd_sc6000_driver = {
    671	.match		= snd_sc6000_match,
    672	.probe		= snd_sc6000_probe,
    673	/* FIXME: suspend/resume */
    674	.driver		= {
    675		.name	= DRV_NAME,
    676	},
    677};
    678
    679
    680module_isa_driver(snd_sc6000_driver, SNDRV_CARDS);