[linux-block.git] / sound / isa / sc6000.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Driver for Gallant SC-6000 soundcard. This card is also known as
 *  Audio Excel DSP 16 or Zoltrix AV302.
 *  These cards use CompuMedia ASC-9308 chip + AD1848 codec.
 *  SC-6600 and SC-7000 cards are also supported. They are based on
 *  CompuMedia ASC-9408 chip and CS4231 codec.
 *
 *  Copyright (C) 2007 Krzysztof Helt <krzysztof.h1@wp.pl>
 *
 *  I don't have documentation for this card. I used the driver
 *  for OSS/Free included in the kernel source as reference.
 */

#include <linux/module.h>
#include <linux/delay.h>
#include <linux/isa.h>
#include <linux/io.h>
#include <asm/dma.h>
#include <sound/core.h>
#include <sound/wss.h>
#include <sound/opl3.h>
#include <sound/mpu401.h>
#include <sound/control.h>
#define SNDRV_LEGACY_FIND_FREE_IRQ
#define SNDRV_LEGACY_FIND_FREE_DMA
#include <sound/initval.h>

MODULE_AUTHOR("Krzysztof Helt");
MODULE_DESCRIPTION("Gallant SC-6000");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Gallant, SC-6000},"
			"{AudioExcel, Audio Excel DSP 16},"
			"{Zoltrix, AV302}}");

static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220, 0x240 */
static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5, 7, 9, 10, 11 */
static long mss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x530, 0xe80 */
static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
						/* 0x300, 0x310, 0x320, 0x330 */
static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5, 7, 9, 10, 0 */
static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0, 1, 3 */
static bool joystick[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = false };

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for sc-6000 based soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for sc-6000 based soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable sc-6000 based soundcard.");
module_param_hw_array(port, long, ioport, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for sc-6000 driver.");
module_param_hw_array(mss_port, long, ioport, NULL, 0444);
MODULE_PARM_DESC(mss_port, "MSS Port # for sc-6000 driver.");
module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
MODULE_PARM_DESC(mpu_port, "MPU-401 port # for sc-6000 driver.");
module_param_hw_array(irq, int, irq, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for sc-6000 driver.");
module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for sc-6000 driver.");
module_param_hw_array(dma, int, dma, NULL, 0444);
MODULE_PARM_DESC(dma, "DMA # for sc-6000 driver.");
module_param_array(joystick, bool, NULL, 0444);
MODULE_PARM_DESC(joystick, "Enable gameport.");

/*
 * Commands of SC6000's DSP (SBPRO+special).
 * Some of them are COMMAND_xx, in the future they may change.
 */
#define WRITE_MDIRQ_CFG	0x50	/* Set M&I&DRQ mask (the real config)	*/
#define COMMAND_52	0x52	/*					*/
#define READ_HARD_CFG	0x58	/* Read Hardware Config (I/O base etc)	*/
#define COMMAND_5C	0x5c	/*					*/
#define COMMAND_60	0x60	/*					*/
#define COMMAND_66	0x66	/*					*/
#define COMMAND_6C	0x6c	/*					*/
#define COMMAND_6E	0x6e	/*					*/
#define COMMAND_88	0x88	/* Unknown command 			*/
#define DSP_INIT_MSS	0x8c	/* Enable Microsoft Sound System mode	*/
#define COMMAND_C5	0xc5	/*					*/
#define GET_DSP_VERSION	0xe1	/* Get DSP Version			*/
#define GET_DSP_COPYRIGHT 0xe3	/* Get DSP Copyright			*/

/*
 * Offsets of SC6000 DSP I/O ports. The offset is added to base I/O port
 * to have the actual I/O port.
 * Register permissions are:
 * (wo) == Write Only
 * (ro) == Read  Only
 * (w-) == Write
 * (r-) == Read
 */
#define DSP_RESET	0x06	/* offset of DSP RESET		(wo) */
#define DSP_READ	0x0a	/* offset of DSP READ		(ro) */
#define DSP_WRITE	0x0c	/* offset of DSP WRITE		(w-) */
#define DSP_COMMAND	0x0c	/* offset of DSP COMMAND	(w-) */
#define DSP_STATUS	0x0c	/* offset of DSP STATUS		(r-) */
#define DSP_DATAVAIL	0x0e	/* offset of DSP DATA AVAILABLE	(ro) */

#define PFX "sc6000: "
#define DRV_NAME "SC-6000"

/* hardware dependent functions */

/*
 * sc6000_irq_to_softcfg - Decode irq number into cfg code.
 */
static unsigned char sc6000_irq_to_softcfg(int irq)
{
	unsigned char val = 0;

	switch (irq) {
	case 5:
		val = 0x28;
		break;
	case 7:
		val = 0x8;
		break;
	case 9:
		val = 0x10;
		break;
	case 10:
		val = 0x18;
		break;
	case 11:
		val = 0x20;
		break;
	default:
		break;
	}
	return val;
}

/*
 * sc6000_dma_to_softcfg - Decode dma number into cfg code.
 */
static unsigned char sc6000_dma_to_softcfg(int dma)
{
	unsigned char val = 0;

	switch (dma) {
	case 0:
		val = 1;
		break;
	case 1:
		val = 2;
		break;
	case 3:
		val = 3;
		break;
	default:
		break;
	}
	return val;
}

/*
 * sc6000_mpu_irq_to_softcfg - Decode MPU-401 irq number into cfg code.
 */
static unsigned char sc6000_mpu_irq_to_softcfg(int mpu_irq)
{
	unsigned char val = 0;

	switch (mpu_irq) {
	case 5:
		val = 4;
		break;
	case 7:
		val = 0x44;
		break;
	case 9:
		val = 0x84;
		break;
	case 10:
		val = 0xc4;
		break;
	default:
		break;
	}
	return val;
}

static int sc6000_wait_data(char __iomem *vport)
{
	int loop = 1000;
	unsigned char val = 0;

	do {
		val = ioread8(vport + DSP_DATAVAIL);
		if (val & 0x80)
			return 0;
		cpu_relax();
	} while (loop--);

	return -EAGAIN;
}

static int sc6000_read(char __iomem *vport)
{
	if (sc6000_wait_data(vport))
		return -EBUSY;

	return ioread8(vport + DSP_READ);

}

static int sc6000_write(char __iomem *vport, int cmd)
{
	unsigned char val;
	int loop = 500000;

	do {
		val = ioread8(vport + DSP_STATUS);
		/*
		 * DSP ready to receive data if bit 7 of val == 0
		 */
		if (!(val & 0x80)) {
			iowrite8(cmd, vport + DSP_COMMAND);
			return 0;
		}
		cpu_relax();
	} while (loop--);

	snd_printk(KERN_ERR "DSP Command (0x%x) timeout.\n", cmd);

	return -EIO;
}

static int sc6000_dsp_get_answer(char __iomem *vport, int command,
				 char *data, int data_len)
{
	int len = 0;

	if (sc6000_write(vport, command)) {
		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", command);
		return -EIO;
	}

	do {
		int val = sc6000_read(vport);

		if (val < 0)
			break;

		data[len++] = val;

	} while (len < data_len);

	/*
	 * If no more data available, return to the caller, no error if len>0.
	 * We have no other way to know when the string is finished.
	 */
	return len ? len : -EIO;
}

static int sc6000_dsp_reset(char __iomem *vport)
{
	iowrite8(1, vport + DSP_RESET);
	udelay(10);
	iowrite8(0, vport + DSP_RESET);
	udelay(20);
	if (sc6000_read(vport) == 0xaa)
		return 0;
	return -ENODEV;
}

/* detection and initialization */
static int sc6000_hw_cfg_write(char __iomem *vport, const int *cfg)
{
	if (sc6000_write(vport, COMMAND_6C) < 0) {
		snd_printk(KERN_WARNING "CMD 0x%x: failed!\n", COMMAND_6C);
		return -EIO;
	}
	if (sc6000_write(vport, COMMAND_5C) < 0) {
		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", COMMAND_5C);
		return -EIO;
	}
	if (sc6000_write(vport, cfg[0]) < 0) {
		snd_printk(KERN_ERR "DATA 0x%x: failed!\n", cfg[0]);
		return -EIO;
	}
	if (sc6000_write(vport, cfg[1]) < 0) {
		snd_printk(KERN_ERR "DATA 0x%x: failed!\n", cfg[1]);
		return -EIO;
	}
	if (sc6000_write(vport, COMMAND_C5) < 0) {
		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", COMMAND_C5);
		return -EIO;
	}

	return 0;
}

static int sc6000_cfg_write(char __iomem *vport, unsigned char softcfg)
{

	if (sc6000_write(vport, WRITE_MDIRQ_CFG)) {
		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG);
		return -EIO;
	}
	if (sc6000_write(vport, softcfg)) {
		snd_printk(KERN_ERR "sc6000_cfg_write: failed!\n");
		return -EIO;
	}
	return 0;
}

static int sc6000_setup_board(char __iomem *vport, int config)
{
	int loop = 10;

	do {
		if (sc6000_write(vport, COMMAND_88)) {
			snd_printk(KERN_ERR "CMD 0x%x: failed!\n",
				   COMMAND_88);
			return -EIO;
		}
	} while ((sc6000_wait_data(vport) < 0) && loop--);

	if (sc6000_read(vport) < 0) {
		snd_printk(KERN_ERR "sc6000_read after CMD 0x%x: failed\n",
			   COMMAND_88);
		return -EIO;
	}

	if (sc6000_cfg_write(vport, config))
		return -ENODEV;

	return 0;
}

static int sc6000_init_mss(char __iomem *vport, int config,
			   char __iomem *vmss_port, int mss_config)
{
	if (sc6000_write(vport, DSP_INIT_MSS)) {
		snd_printk(KERN_ERR "sc6000_init_mss [0x%x]: failed!\n",
			   DSP_INIT_MSS);
		return -EIO;
	}

	msleep(10);

	if (sc6000_cfg_write(vport, config))
		return -EIO;

	iowrite8(mss_config, vmss_port);

	return 0;
}

static void sc6000_hw_cfg_encode(char __iomem *vport, int *cfg,
				 long xport, long xmpu,
				 long xmss_port, int joystick)
{
	cfg[0] = 0;
	cfg[1] = 0;
	if (xport == 0x240)
		cfg[0] |= 1;
	if (xmpu != SNDRV_AUTO_PORT) {
		cfg[0] |= (xmpu & 0x30) >> 2;
		cfg[1] |= 0x20;
	}
	if (xmss_port == 0xe80)
		cfg[0] |= 0x10;
	cfg[0] |= 0x40;		/* always set */
	if (!joystick)
		cfg[0] |= 0x02;
	cfg[1] |= 0x80;		/* enable WSS system */
	cfg[1] &= ~0x40;	/* disable IDE */
	snd_printd("hw cfg %x, %x\n", cfg[0], cfg[1]);
}

static int sc6000_init_board(char __iomem *vport,
			     char __iomem *vmss_port, int dev)
{
	char answer[15];
	char version[2];
	int mss_config = sc6000_irq_to_softcfg(irq[dev]) |
			 sc6000_dma_to_softcfg(dma[dev]);
	int config = mss_config |
		     sc6000_mpu_irq_to_softcfg(mpu_irq[dev]);
	int err;
	int old = 0;

	err = sc6000_dsp_reset(vport);
	if (err < 0) {
		snd_printk(KERN_ERR "sc6000_dsp_reset: failed!\n");
		return err;
	}

	memset(answer, 0, sizeof(answer));
	err = sc6000_dsp_get_answer(vport, GET_DSP_COPYRIGHT, answer, 15);
	if (err <= 0) {
		snd_printk(KERN_ERR "sc6000_dsp_copyright: failed!\n");
		return -ENODEV;
	}
	/*
	 * My SC-6000 card return "SC-6000" in DSPCopyright, so
	 * if we have something different, we have to be warned.
	 */
	if (strncmp("SC-6000", answer, 7))
		snd_printk(KERN_WARNING "Warning: non SC-6000 audio card!\n");

	if (sc6000_dsp_get_answer(vport, GET_DSP_VERSION, version, 2) < 2) {
		snd_printk(KERN_ERR "sc6000_dsp_version: failed!\n");
		return -ENODEV;
	}
	printk(KERN_INFO PFX "Detected model: %s, DSP version %d.%d\n",
		answer, version[0], version[1]);

	/* set configuration */
	sc6000_write(vport, COMMAND_5C);
	if (sc6000_read(vport) < 0)
		old = 1;

	if (!old) {
		int cfg[2];
		sc6000_hw_cfg_encode(vport, &cfg[0], port[dev], mpu_port[dev],
				     mss_port[dev], joystick[dev]);
		if (sc6000_hw_cfg_write(vport, cfg) < 0) {
			snd_printk(KERN_ERR "sc6000_hw_cfg_write: failed!\n");
			return -EIO;
		}
	}
	err = sc6000_setup_board(vport, config);
	if (err < 0) {
		snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
		return -ENODEV;
	}

	sc6000_dsp_reset(vport);

	if (!old) {
		sc6000_write(vport, COMMAND_60);
		sc6000_write(vport, 0x02);
		sc6000_dsp_reset(vport);
	}

	err = sc6000_setup_board(vport, config);
	if (err < 0) {
		snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
		return -ENODEV;
	}
	err = sc6000_init_mss(vport, config, vmss_port, mss_config);
	if (err < 0) {
		snd_printk(KERN_ERR "Cannot initialize "
			   "Microsoft Sound System mode.\n");
		return -ENODEV;
	}

	return 0;
}

static int snd_sc6000_mixer(struct snd_wss *chip)
{
	struct snd_card *card = chip->card;
	struct snd_ctl_elem_id id1, id2;
	int err;

	memset(&id1, 0, sizeof(id1));
	memset(&id2, 0, sizeof(id2));
	id1.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	/* reassign AUX0 to FM */
	strcpy(id1.name, "Aux Playback Switch");
	strcpy(id2.name, "FM Playback Switch");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0)
		return err;
	strcpy(id1.name, "Aux Playback Volume");
	strcpy(id2.name, "FM Playback Volume");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0)
		return err;
	/* reassign AUX1 to CD */
	strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
	strcpy(id2.name, "CD Playback Switch");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0)
		return err;
	strcpy(id1.name, "Aux Playback Volume");
	strcpy(id2.name, "CD Playback Volume");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0)
		return err;
	return 0;
}

static int snd_sc6000_match(struct device *devptr, unsigned int dev)
{
	if (!enable[dev])
		return 0;
	if (port[dev] == SNDRV_AUTO_PORT) {
		printk(KERN_ERR PFX "specify IO port\n");
		return 0;
	}
	if (mss_port[dev] == SNDRV_AUTO_PORT) {
		printk(KERN_ERR PFX "specify MSS port\n");
		return 0;
	}
	if (port[dev] != 0x220 && port[dev] != 0x240) {
		printk(KERN_ERR PFX "Port must be 0x220 or 0x240\n");
		return 0;
	}
	if (mss_port[dev] != 0x530 && mss_port[dev] != 0xe80) {
		printk(KERN_ERR PFX "MSS port must be 0x530 or 0xe80\n");
		return 0;
	}
	if (irq[dev] != SNDRV_AUTO_IRQ && !sc6000_irq_to_softcfg(irq[dev])) {
		printk(KERN_ERR PFX "invalid IRQ %d\n", irq[dev]);
		return 0;
	}
	if (dma[dev] != SNDRV_AUTO_DMA && !sc6000_dma_to_softcfg(dma[dev])) {
		printk(KERN_ERR PFX "invalid DMA %d\n", dma[dev]);
		return 0;
	}
	if (mpu_port[dev] != SNDRV_AUTO_PORT &&
	    (mpu_port[dev] & ~0x30L) != 0x300) {
		printk(KERN_ERR PFX "invalid MPU-401 port %lx\n",
			mpu_port[dev]);
		return 0;
	}
	if (mpu_port[dev] != SNDRV_AUTO_PORT &&
	    mpu_irq[dev] != SNDRV_AUTO_IRQ && mpu_irq[dev] != 0 &&
	    !sc6000_mpu_irq_to_softcfg(mpu_irq[dev])) {
		printk(KERN_ERR PFX "invalid MPU-401 IRQ %d\n", mpu_irq[dev]);
		return 0;
	}
	return 1;
}

static int snd_sc6000_probe(struct device *devptr, unsigned int dev)
{
	static int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
	static int possible_dmas[] = { 1, 3, 0, -1 };
	int err;
	int xirq = irq[dev];
	int xdma = dma[dev];
	struct snd_card *card;
	struct snd_wss *chip;
	struct snd_opl3 *opl3;
	char __iomem **vport;
	char __iomem *vmss_port;


	err = snd_card_new(devptr, index[dev], id[dev], THIS_MODULE,
			   sizeof(vport), &card);
	if (err < 0)
		return err;

	vport = card->private_data;
	if (xirq == SNDRV_AUTO_IRQ) {
		xirq = snd_legacy_find_free_irq(possible_irqs);
		if (xirq < 0) {
			snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
			err = -EBUSY;
			goto err_exit;
		}
	}

	if (xdma == SNDRV_AUTO_DMA) {
		xdma = snd_legacy_find_free_dma(possible_dmas);
		if (xdma < 0) {
			snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
			err = -EBUSY;
			goto err_exit;
		}
	}

	if (!request_region(port[dev], 0x10, DRV_NAME)) {
		snd_printk(KERN_ERR PFX
			   "I/O port region is already in use.\n");
		err = -EBUSY;
		goto err_exit;
	}
	*vport = devm_ioport_map(devptr, port[dev], 0x10);
	if (*vport == NULL) {
		snd_printk(KERN_ERR PFX
			   "I/O port cannot be iomapped.\n");
		err = -EBUSY;
		goto err_unmap1;
	}

	/* to make it marked as used */
	if (!request_region(mss_port[dev], 4, DRV_NAME)) {
		snd_printk(KERN_ERR PFX
			   "SC-6000 port I/O port region is already in use.\n");
		err = -EBUSY;
		goto err_unmap1;
	}
	vmss_port = devm_ioport_map(devptr, mss_port[dev], 4);
	if (!vmss_port) {
		snd_printk(KERN_ERR PFX
			   "MSS port I/O cannot be iomapped.\n");
		err = -EBUSY;
		goto err_unmap2;
	}

	snd_printd("Initializing BASE[0x%lx] IRQ[%d] DMA[%d] MIRQ[%d]\n",
		   port[dev], xirq, xdma,
		   mpu_irq[dev] == SNDRV_AUTO_IRQ ? 0 : mpu_irq[dev]);

	err = sc6000_init_board(*vport, vmss_port, dev);
	if (err < 0)
		goto err_unmap2;

	err = snd_wss_create(card, mss_port[dev] + 4,  -1, xirq, xdma, -1,
			     WSS_HW_DETECT, 0, &chip);
	if (err < 0)
		goto err_unmap2;

	err = snd_wss_pcm(chip, 0);
	if (err < 0) {
		snd_printk(KERN_ERR PFX
			   "error creating new WSS PCM device\n");
		goto err_unmap2;
	}
	err = snd_wss_mixer(chip);
	if (err < 0) {
		snd_printk(KERN_ERR PFX "error creating new WSS mixer\n");
		goto err_unmap2;
	}
	err = snd_sc6000_mixer(chip);
	if (err < 0) {
		snd_printk(KERN_ERR PFX "the mixer rewrite failed\n");
		goto err_unmap2;
	}
	if (snd_opl3_create(card,
			    0x388, 0x388 + 2,
			    OPL3_HW_AUTO, 0, &opl3) < 0) {
		snd_printk(KERN_ERR PFX "no OPL device at 0x%x-0x%x ?\n",
			   0x388, 0x388 + 2);
	} else {
		err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
		if (err < 0)
			goto err_unmap2;
	}

	if (mpu_port[dev] != SNDRV_AUTO_PORT) {
		if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
			mpu_irq[dev] = -1;
		if (snd_mpu401_uart_new(card, 0,
					MPU401_HW_MPU401,
					mpu_port[dev], 0,
					mpu_irq[dev], NULL) < 0)
			snd_printk(KERN_ERR "no MPU-401 device at 0x%lx ?\n",
					mpu_port[dev]);
	}

	strcpy(card->driver, DRV_NAME);
	strcpy(card->shortname, "SC-6000");
	sprintf(card->longname, "Gallant SC-6000 at 0x%lx, irq %d, dma %d",
		mss_port[dev], xirq, xdma);

	err = snd_card_register(card);
	if (err < 0)
		goto err_unmap2;

	dev_set_drvdata(devptr, card);
	return 0;

err_unmap2:
	sc6000_setup_board(*vport, 0);
	release_region(mss_port[dev], 4);
err_unmap1:
	release_region(port[dev], 0x10);
err_exit:
	snd_card_free(card);
	return err;
}

static int snd_sc6000_remove(struct device *devptr, unsigned int dev)
{
	struct snd_card *card = dev_get_drvdata(devptr);
	char __iomem **vport = card->private_data;

	if (sc6000_setup_board(*vport, 0) < 0)
		snd_printk(KERN_WARNING "sc6000_setup_board failed on exit!\n");

	release_region(port[dev], 0x10);
	release_region(mss_port[dev], 4);

	snd_card_free(card);
	return 0;
}

static struct isa_driver snd_sc6000_driver = {
	.match		= snd_sc6000_match,
	.probe		= snd_sc6000_probe,
	.remove		= snd_sc6000_remove,
	/* FIXME: suspend/resume */
	.driver		= {
		.name	= DRV_NAME,
	},
};


module_isa_driver(snd_sc6000_driver, SNDRV_CARDS);
Commit	Line	Data
1a59d1b8	1	// SPDX-License-Identifier: GPL-2.0-or-later
e307258d KH	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.
c2828661 KH	6	* SC-6600 and SC-7000 cards are also supported. They are based on
c2828661 KH	7	* CompuMedia ASC-9408 chip and CS4231 codec.
e307258d KH	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.
e307258d KH	13	*/
e307258d KH	14
e307258d	15	#include <linux/module.h>
3a5bdee5	16	#include <linux/delay.h>
e307258d KH	17	#include <linux/isa.h>
	18	#include <linux/io.h>
	19	#include <asm/dma.h>
	20	#include <sound/core.h>
760fc6b8	21	#include <sound/wss.h>
e307258d KH	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
	29	MODULE_AUTHOR("Krzysztof Helt");
	30	MODULE_DESCRIPTION("Gallant SC-6000");
	31	MODULE_LICENSE("GPL");
	32	MODULE_SUPPORTED_DEVICE("{{Gallant, SC-6000},"
	33	"{AudioExcel, Audio Excel DSP 16},"
	34	"{Zoltrix, AV302}}");
	35
	36	static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
	37	static char id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; / ID for this card */
a67ff6a5	38	static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
e307258d KH	39	static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220, 0x240 */
	40	static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5, 7, 9, 10, 11 */
	41	static long mss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x530, 0xe80 */
	42	static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
	43	/* 0x300, 0x310, 0x320, 0x330 */
	44	static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5, 7, 9, 10, 0 */
	45	static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0, 1, 3 */
b0ec3a30	46	static bool joystick[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = false };
e307258d KH	47
	48	module_param_array(index, int, NULL, 0444);
	49	MODULE_PARM_DESC(index, "Index value for sc-6000 based soundcard.");
	50	module_param_array(id, charp, NULL, 0444);
	51	MODULE_PARM_DESC(id, "ID string for sc-6000 based soundcard.");
	52	module_param_array(enable, bool, NULL, 0444);
	53	MODULE_PARM_DESC(enable, "Enable sc-6000 based soundcard.");
e992ef57	54	module_param_hw_array(port, long, ioport, NULL, 0444);
e307258d	55	MODULE_PARM_DESC(port, "Port # for sc-6000 driver.");
e992ef57	56	module_param_hw_array(mss_port, long, ioport, NULL, 0444);
e307258d	57	MODULE_PARM_DESC(mss_port, "MSS Port # for sc-6000 driver.");
e992ef57	58	module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
e307258d	59	MODULE_PARM_DESC(mpu_port, "MPU-401 port # for sc-6000 driver.");
e992ef57	60	module_param_hw_array(irq, int, irq, NULL, 0444);
e307258d	61	MODULE_PARM_DESC(irq, "IRQ # for sc-6000 driver.");
e992ef57	62	module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
e307258d	63	MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for sc-6000 driver.");
e992ef57	64	module_param_hw_array(dma, int, dma, NULL, 0444);
e307258d	65	MODULE_PARM_DESC(dma, "DMA # for sc-6000 driver.");
b0ec3a30 KH	66	module_param_array(joystick, bool, NULL, 0444);
b0ec3a30 KH	67	MODULE_PARM_DESC(joystick, "Enable gameport.");
e307258d KH	68
	69	/*
	70	* Commands of SC6000's DSP (SBPRO+special).
	71	* Some of them are COMMAND_xx, in the future they may change.
	72	*/
	73	#define WRITE_MDIRQ_CFG 0x50 /* Set M&I&DRQ mask (the real config) */
	74	#define COMMAND_52 0x52 /* */
	75	#define READ_HARD_CFG 0x58 /* Read Hardware Config (I/O base etc) */
	76	#define COMMAND_5C 0x5c /* */
	77	#define COMMAND_60 0x60 /* */
	78	#define COMMAND_66 0x66 /* */
	79	#define COMMAND_6C 0x6c /* */
	80	#define COMMAND_6E 0x6e /* */
	81	#define COMMAND_88 0x88 /* Unknown command */
	82	#define DSP_INIT_MSS 0x8c /* Enable Microsoft Sound System mode */
	83	#define COMMAND_C5 0xc5 /* */
	84	#define GET_DSP_VERSION 0xe1 /* Get DSP Version */
	85	#define GET_DSP_COPYRIGHT 0xe3 /* Get DSP Copyright */
	86
	87	/*
	88	* Offsets of SC6000 DSP I/O ports. The offset is added to base I/O port
	89	* to have the actual I/O port.
	90	* Register permissions are:
	91	* (wo) == Write Only
	92	* (ro) == Read Only
	93	* (w-) == Write
	94	* (r-) == Read
	95	*/
	96	#define DSP_RESET 0x06 /* offset of DSP RESET (wo) */
	97	#define DSP_READ 0x0a /* offset of DSP READ (ro) */
	98	#define DSP_WRITE 0x0c /* offset of DSP WRITE (w-) */
	99	#define DSP_COMMAND 0x0c /* offset of DSP COMMAND (w-) */
	100	#define DSP_STATUS 0x0c /* offset of DSP STATUS (r-) */
	101	#define DSP_DATAVAIL 0x0e /* offset of DSP DATA AVAILABLE (ro) */
	102
	103	#define PFX "sc6000: "
	104	#define DRV_NAME "SC-6000"
	105
	106	/* hardware dependent functions */
	107
	108	/*
	109	* sc6000_irq_to_softcfg - Decode irq number into cfg code.
	110	*/
1bff292e	111	static unsigned char sc6000_irq_to_softcfg(int irq)
e307258d KH	112	{
	113	unsigned char val = 0;
	114
	115	switch (irq) {
	116	case 5:
	117	val = 0x28;
	118	break;
	119	case 7:
	120	val = 0x8;
	121	break;
	122	case 9:
	123	val = 0x10;
	124	break;
	125	case 10:
	126	val = 0x18;
	127	break;
	128	case 11:
	129	val = 0x20;
	130	break;
	131	default:
	132	break;
	133	}
	134	return val;
	135	}
	136
	137	/*
	138	* sc6000_dma_to_softcfg - Decode dma number into cfg code.
	139	*/
1bff292e	140	static unsigned char sc6000_dma_to_softcfg(int dma)
e307258d KH	141	{
	142	unsigned char val = 0;
	143
	144	switch (dma) {
	145	case 0:
	146	val = 1;
	147	break;
	148	case 1:
	149	val = 2;
	150	break;
	151	case 3:
	152	val = 3;
	153	break;
	154	default:
	155	break;
	156	}
	157	return val;
	158	}
	159
	160	/*
	161	* sc6000_mpu_irq_to_softcfg - Decode MPU-401 irq number into cfg code.
	162	*/
1bff292e	163	static unsigned char sc6000_mpu_irq_to_softcfg(int mpu_irq)
e307258d KH	164	{
	165	unsigned char val = 0;
	166
	167	switch (mpu_irq) {
	168	case 5:
	169	val = 4;
	170	break;
	171	case 7:
	172	val = 0x44;
	173	break;
	174	case 9:
	175	val = 0x84;
	176	break;
	177	case 10:
	178	val = 0xc4;
	179	break;
	180	default:
	181	break;
	182	}
	183	return val;
	184	}
	185
c2828661	186	static int sc6000_wait_data(char __iomem *vport)
e307258d KH	187	{
	188	int loop = 1000;
	189	unsigned char val = 0;
	190
	191	do {
	192	val = ioread8(vport + DSP_DATAVAIL);
	193	if (val & 0x80)
	194	return 0;
	195	cpu_relax();
	196	} while (loop--);
	197
	198	return -EAGAIN;
	199	}
	200
c2828661	201	static int sc6000_read(char __iomem *vport)
e307258d KH	202	{
	203	if (sc6000_wait_data(vport))
	204	return -EBUSY;
	205
	206	return ioread8(vport + DSP_READ);
	207
	208	}
	209
c2828661	210	static int sc6000_write(char __iomem *vport, int cmd)
e307258d KH	211	{
	212	unsigned char val;
	213	int loop = 500000;
	214
	215	do {
	216	val = ioread8(vport + DSP_STATUS);
	217	/*
	218	* DSP ready to receive data if bit 7 of val == 0
	219	*/
	220	if (!(val & 0x80)) {
	221	iowrite8(cmd, vport + DSP_COMMAND);
	222	return 0;
	223	}
	224	cpu_relax();
	225	} while (loop--);
	226
	227	snd_printk(KERN_ERR "DSP Command (0x%x) timeout.\n", cmd);
	228
	229	return -EIO;
	230	}
	231
1bff292e BP	232	static int sc6000_dsp_get_answer(char __iomem *vport, int command,
1bff292e BP	233	char *data, int data_len)
e307258d KH	234	{
	235	int len = 0;
	236
	237	if (sc6000_write(vport, command)) {
	238	snd_printk(KERN_ERR "CMD 0x%x: failed!\n", command);
	239	return -EIO;
	240	}
	241
	242	do {
	243	int val = sc6000_read(vport);
	244
	245	if (val < 0)
	246	break;
	247
	248	data[len++] = val;
	249
	250	} while (len < data_len);
	251
	252	/*
	253	* If no more data available, return to the caller, no error if len>0.
	254	* We have no other way to know when the string is finished.
	255	*/
	256	return len ? len : -EIO;
	257	}
	258
1bff292e	259	static int sc6000_dsp_reset(char __iomem *vport)
e307258d KH	260	{
	261	iowrite8(1, vport + DSP_RESET);
	262	udelay(10);
	263	iowrite8(0, vport + DSP_RESET);
	264	udelay(20);
	265	if (sc6000_read(vport) == 0xaa)
	266	return 0;
	267	return -ENODEV;
	268	}
	269
	270	/* detection and initialization */
1bff292e	271	static int sc6000_hw_cfg_write(char __iomem vport, const int cfg)
c2828661 KH	272	{
	273	if (sc6000_write(vport, COMMAND_6C) < 0) {
	274	snd_printk(KERN_WARNING "CMD 0x%x: failed!\n", COMMAND_6C);
	275	return -EIO;
	276	}
	277	if (sc6000_write(vport, COMMAND_5C) < 0) {
	278	snd_printk(KERN_ERR "CMD 0x%x: failed!\n", COMMAND_5C);
	279	return -EIO;
	280	}
	281	if (sc6000_write(vport, cfg[0]) < 0) {
	282	snd_printk(KERN_ERR "DATA 0x%x: failed!\n", cfg[0]);
	283	return -EIO;
	284	}
	285	if (sc6000_write(vport, cfg[1]) < 0) {
	286	snd_printk(KERN_ERR "DATA 0x%x: failed!\n", cfg[1]);
	287	return -EIO;
	288	}
	289	if (sc6000_write(vport, COMMAND_C5) < 0) {
	290	snd_printk(KERN_ERR "CMD 0x%x: failed!\n", COMMAND_C5);
	291	return -EIO;
	292	}
	293
	294	return 0;
	295	}
	296
	297	static int sc6000_cfg_write(char __iomem *vport, unsigned char softcfg)
e307258d KH	298	{
	299
	300	if (sc6000_write(vport, WRITE_MDIRQ_CFG)) {
	301	snd_printk(KERN_ERR "CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG);
	302	return -EIO;
	303	}
	304	if (sc6000_write(vport, softcfg)) {
	305	snd_printk(KERN_ERR "sc6000_cfg_write: failed!\n");
	306	return -EIO;
	307	}
	308	return 0;
	309	}
	310
c2828661	311	static int sc6000_setup_board(char __iomem *vport, int config)
e307258d KH	312	{
	313	int loop = 10;
	314
	315	do {
	316	if (sc6000_write(vport, COMMAND_88)) {
	317	snd_printk(KERN_ERR "CMD 0x%x: failed!\n",
	318	COMMAND_88);
	319	return -EIO;
	320	}
	321	} while ((sc6000_wait_data(vport) < 0) && loop--);
	322
	323	if (sc6000_read(vport) < 0) {
	324	snd_printk(KERN_ERR "sc6000_read after CMD 0x%x: failed\n",
	325	COMMAND_88);
	326	return -EIO;
	327	}
	328
	329	if (sc6000_cfg_write(vport, config))
	330	return -ENODEV;
	331
	332	return 0;
	333	}
	334
1bff292e BP	335	static int sc6000_init_mss(char __iomem *vport, int config,
1bff292e BP	336	char __iomem *vmss_port, int mss_config)
e307258d KH	337	{
	338	if (sc6000_write(vport, DSP_INIT_MSS)) {
	339	snd_printk(KERN_ERR "sc6000_init_mss [0x%x]: failed!\n",
	340	DSP_INIT_MSS);
	341	return -EIO;
	342	}
	343
	344	msleep(10);
	345
	346	if (sc6000_cfg_write(vport, config))
	347	return -EIO;
	348
	349	iowrite8(mss_config, vmss_port);
	350
	351	return 0;
	352	}
	353
1bff292e BP	354	static void sc6000_hw_cfg_encode(char __iomem vport, int cfg,
	355	long xport, long xmpu,
	356	long xmss_port, int joystick)
c2828661 KH	357	{
	358	cfg[0] = 0;
	359	cfg[1] = 0;
	360	if (xport == 0x240)
	361	cfg[0] \|= 1;
	362	if (xmpu != SNDRV_AUTO_PORT) {
	363	cfg[0] \|= (xmpu & 0x30) >> 2;
	364	cfg[1] \|= 0x20;
	365	}
	366	if (xmss_port == 0xe80)
	367	cfg[0] \|= 0x10;
	368	cfg[0] \|= 0x40; /* always set */
b0ec3a30 KH	369	if (!joystick)
b0ec3a30 KH	370	cfg[0] \|= 0x02;
c2828661 KH	371	cfg[1] \|= 0x80; /* enable WSS system */
	372	cfg[1] &= ~0x40; /* disable IDE */
	373	snd_printd("hw cfg %x, %x\n", cfg[0], cfg[1]);
	374	}
	375
1bff292e BP	376	static int sc6000_init_board(char __iomem *vport,
1bff292e BP	377	char __iomem *vmss_port, int dev)
e307258d KH	378	{
	379	char answer[15];
	380	char version[2];
c2828661 KH	381	int mss_config = sc6000_irq_to_softcfg(irq[dev]) \|
c2828661 KH	382	sc6000_dma_to_softcfg(dma[dev]);
e307258d	383	int config = mss_config \|
c2828661	384	sc6000_mpu_irq_to_softcfg(mpu_irq[dev]);
e307258d	385	int err;
c2828661	386	int old = 0;
e307258d KH	387
	388	err = sc6000_dsp_reset(vport);
	389	if (err < 0) {
	390	snd_printk(KERN_ERR "sc6000_dsp_reset: failed!\n");
	391	return err;
	392	}
	393
1cf0bc7e	394	memset(answer, 0, sizeof(answer));
e307258d KH	395	err = sc6000_dsp_get_answer(vport, GET_DSP_COPYRIGHT, answer, 15);
	396	if (err <= 0) {
	397	snd_printk(KERN_ERR "sc6000_dsp_copyright: failed!\n");
	398	return -ENODEV;
	399	}
	400	/*
	401	* My SC-6000 card return "SC-6000" in DSPCopyright, so
	402	* if we have something different, we have to be warned.
e307258d KH	403	*/
	404	if (strncmp("SC-6000", answer, 7))
	405	snd_printk(KERN_WARNING "Warning: non SC-6000 audio card!\n");
	406
	407	if (sc6000_dsp_get_answer(vport, GET_DSP_VERSION, version, 2) < 2) {
	408	snd_printk(KERN_ERR "sc6000_dsp_version: failed!\n");
	409	return -ENODEV;
	410	}
	411	printk(KERN_INFO PFX "Detected model: %s, DSP version %d.%d\n",
	412	answer, version[0], version[1]);
	413
c2828661	414	/* set configuration */
0cfcdeda KH	415	sc6000_write(vport, COMMAND_5C);
	416	if (sc6000_read(vport) < 0)
	417	old = 1;
	418
	419	if (!old) {
	420	int cfg[2];
	421	sc6000_hw_cfg_encode(vport, &cfg[0], port[dev], mpu_port[dev],
b0ec3a30	422	mss_port[dev], joystick[dev]);
0cfcdeda KH	423	if (sc6000_hw_cfg_write(vport, cfg) < 0) {
	424	snd_printk(KERN_ERR "sc6000_hw_cfg_write: failed!\n");
	425	return -EIO;
	426	}
c2828661 KH	427	}
c2828661 KH	428	err = sc6000_setup_board(vport, config);
e307258d	429	if (err < 0) {
c2828661 KH	430	snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
	431	return -ENODEV;
	432	}
	433
	434	sc6000_dsp_reset(vport);
c2828661 KH	435
	436	if (!old) {
	437	sc6000_write(vport, COMMAND_60);
	438	sc6000_write(vport, 0x02);
	439	sc6000_dsp_reset(vport);
e307258d KH	440	}
	441
	442	err = sc6000_setup_board(vport, config);
	443	if (err < 0) {
	444	snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
	445	return -ENODEV;
	446	}
e307258d KH	447	err = sc6000_init_mss(vport, config, vmss_port, mss_config);
e307258d KH	448	if (err < 0) {
c2828661	449	snd_printk(KERN_ERR "Cannot initialize "
e307258d KH	450	"Microsoft Sound System mode.\n");
	451	return -ENODEV;
	452	}
	453
	454	return 0;
	455	}
	456
1bff292e	457	static int snd_sc6000_mixer(struct snd_wss *chip)
e307258d KH	458	{
	459	struct snd_card *card = chip->card;
	460	struct snd_ctl_elem_id id1, id2;
	461	int err;
	462
	463	memset(&id1, 0, sizeof(id1));
	464	memset(&id2, 0, sizeof(id2));
	465	id1.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	466	id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	467	/* reassign AUX0 to FM */
	468	strcpy(id1.name, "Aux Playback Switch");
	469	strcpy(id2.name, "FM Playback Switch");
	470	err = snd_ctl_rename_id(card, &id1, &id2);
	471	if (err < 0)
	472	return err;
	473	strcpy(id1.name, "Aux Playback Volume");
	474	strcpy(id2.name, "FM Playback Volume");
	475	err = snd_ctl_rename_id(card, &id1, &id2);
	476	if (err < 0)
	477	return err;
	478	/* reassign AUX1 to CD */
	479	strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
	480	strcpy(id2.name, "CD Playback Switch");
	481	err = snd_ctl_rename_id(card, &id1, &id2);
	482	if (err < 0)
	483	return err;
	484	strcpy(id1.name, "Aux Playback Volume");
	485	strcpy(id2.name, "CD Playback Volume");
	486	err = snd_ctl_rename_id(card, &id1, &id2);
	487	if (err < 0)
	488	return err;
	489	return 0;
	490	}
	491
1bff292e	492	static int snd_sc6000_match(struct device *devptr, unsigned int dev)
e307258d KH	493	{
	494	if (!enable[dev])
	495	return 0;
	496	if (port[dev] == SNDRV_AUTO_PORT) {
	497	printk(KERN_ERR PFX "specify IO port\n");
	498	return 0;
	499	}
	500	if (mss_port[dev] == SNDRV_AUTO_PORT) {
	501	printk(KERN_ERR PFX "specify MSS port\n");
	502	return 0;
	503	}
	504	if (port[dev] != 0x220 && port[dev] != 0x240) {
	505	printk(KERN_ERR PFX "Port must be 0x220 or 0x240\n");
	506	return 0;
	507	}
	508	if (mss_port[dev] != 0x530 && mss_port[dev] != 0xe80) {
	509	printk(KERN_ERR PFX "MSS port must be 0x530 or 0xe80\n");
	510	return 0;
	511	}
	512	if (irq[dev] != SNDRV_AUTO_IRQ && !sc6000_irq_to_softcfg(irq[dev])) {
	513	printk(KERN_ERR PFX "invalid IRQ %d\n", irq[dev]);
	514	return 0;
	515	}
	516	if (dma[dev] != SNDRV_AUTO_DMA && !sc6000_dma_to_softcfg(dma[dev])) {
	517	printk(KERN_ERR PFX "invalid DMA %d\n", dma[dev]);
	518	return 0;
	519	}
	520	if (mpu_port[dev] != SNDRV_AUTO_PORT &&
	521	(mpu_port[dev] & ~0x30L) != 0x300) {
	522	printk(KERN_ERR PFX "invalid MPU-401 port %lx\n",
	523	mpu_port[dev]);
	524	return 0;
	525	}
	526	if (mpu_port[dev] != SNDRV_AUTO_PORT &&
	527	mpu_irq[dev] != SNDRV_AUTO_IRQ && mpu_irq[dev] != 0 &&
	528	!sc6000_mpu_irq_to_softcfg(mpu_irq[dev])) {
	529	printk(KERN_ERR PFX "invalid MPU-401 IRQ %d\n", mpu_irq[dev]);
	530	return 0;
	531	}
	532	return 1;
	533	}
	534
1bff292e	535	static int snd_sc6000_probe(struct device *devptr, unsigned int dev)
e307258d KH	536	{
	537	static int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
	538	static int possible_dmas[] = { 1, 3, 0, -1 };
	539	int err;
	540	int xirq = irq[dev];
	541	int xdma = dma[dev];
	542	struct snd_card *card;
241b3ee7	543	struct snd_wss *chip;
e307258d	544	struct snd_opl3 *opl3;
c2828661	545	char __iomem **vport;
e307258d KH	546	char __iomem *vmss_port;
	547
	548
4323cc4d TI	549	err = snd_card_new(devptr, index[dev], id[dev], THIS_MODULE,
4323cc4d TI	550	sizeof(vport), &card);
c95eadd2 TI	551	if (err < 0)
c95eadd2 TI	552	return err;
e307258d	553
c2828661	554	vport = card->private_data;
e307258d KH	555	if (xirq == SNDRV_AUTO_IRQ) {
	556	xirq = snd_legacy_find_free_irq(possible_irqs);
	557	if (xirq < 0) {
	558	snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
	559	err = -EBUSY;
	560	goto err_exit;
	561	}
	562	}
	563
	564	if (xdma == SNDRV_AUTO_DMA) {
	565	xdma = snd_legacy_find_free_dma(possible_dmas);
	566	if (xdma < 0) {
	567	snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
	568	err = -EBUSY;
	569	goto err_exit;
	570	}
	571	}
	572
	573	if (!request_region(port[dev], 0x10, DRV_NAME)) {
	574	snd_printk(KERN_ERR PFX
	575	"I/O port region is already in use.\n");
	576	err = -EBUSY;
	577	goto err_exit;
	578	}
c2828661 KH	579	*vport = devm_ioport_map(devptr, port[dev], 0x10);
c2828661 KH	580	if (*vport == NULL) {
e307258d	581	snd_printk(KERN_ERR PFX
6a300dc9	582	"I/O port cannot be iomapped.\n");
e307258d KH	583	err = -EBUSY;
	584	goto err_unmap1;
	585	}
	586
	587	/* to make it marked as used */
	588	if (!request_region(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	err = -EBUSY;
1cf0bc7e	592	goto err_unmap1;
e307258d KH	593	}
e307258d KH	594	vmss_port = devm_ioport_map(devptr, mss_port[dev], 4);
c2828661	595	if (!vmss_port) {
e307258d	596	snd_printk(KERN_ERR PFX
6a300dc9	597	"MSS port I/O cannot be iomapped.\n");
e307258d KH	598	err = -EBUSY;
	599	goto err_unmap2;
	600	}
	601
	602	snd_printd("Initializing BASE[0x%lx] IRQ[%d] DMA[%d] MIRQ[%d]\n",
	603	port[dev], xirq, xdma,
	604	mpu_irq[dev] == SNDRV_AUTO_IRQ ? 0 : mpu_irq[dev]);
	605
c2828661	606	err = sc6000_init_board(*vport, vmss_port, dev);
e307258d KH	607	if (err < 0)
	608	goto err_unmap2;
	609
760fc6b8 KH	610	err = snd_wss_create(card, mss_port[dev] + 4, -1, xirq, xdma, -1,
760fc6b8 KH	611	WSS_HW_DETECT, 0, &chip);
e307258d KH	612	if (err < 0)
e307258d KH	613	goto err_unmap2;
e307258d	614
fa60c065	615	err = snd_wss_pcm(chip, 0);
e307258d KH	616	if (err < 0) {
e307258d KH	617	snd_printk(KERN_ERR PFX
ead893c0	618	"error creating new WSS PCM device\n");
e307258d KH	619	goto err_unmap2;
e307258d KH	620	}
5664daa1	621	err = snd_wss_mixer(chip);
e307258d	622	if (err < 0) {
5664daa1	623	snd_printk(KERN_ERR PFX "error creating new WSS mixer\n");
e307258d KH	624	goto err_unmap2;
	625	}
	626	err = snd_sc6000_mixer(chip);
	627	if (err < 0) {
	628	snd_printk(KERN_ERR PFX "the mixer rewrite failed\n");
	629	goto err_unmap2;
	630	}
	631	if (snd_opl3_create(card,
	632	0x388, 0x388 + 2,
	633	OPL3_HW_AUTO, 0, &opl3) < 0) {
	634	snd_printk(KERN_ERR PFX "no OPL device at 0x%x-0x%x ?\n",
	635	0x388, 0x388 + 2);
	636	} else {
e307258d KH	637	err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
	638	if (err < 0)
	639	goto err_unmap2;
	640	}
	641
	642	if (mpu_port[dev] != SNDRV_AUTO_PORT) {
	643	if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
	644	mpu_irq[dev] = -1;
	645	if (snd_mpu401_uart_new(card, 0,
	646	MPU401_HW_MPU401,
	647	mpu_port[dev], 0,
dba8b469	648	mpu_irq[dev], NULL) < 0)
e307258d KH	649	snd_printk(KERN_ERR "no MPU-401 device at 0x%lx ?\n",
	650	mpu_port[dev]);
	651	}
	652
	653	strcpy(card->driver, DRV_NAME);
	654	strcpy(card->shortname, "SC-6000");
	655	sprintf(card->longname, "Gallant SC-6000 at 0x%lx, irq %d, dma %d",
	656	mss_port[dev], xirq, xdma);
	657
e307258d KH	658	err = snd_card_register(card);
	659	if (err < 0)
	660	goto err_unmap2;
	661
	662	dev_set_drvdata(devptr, card);
	663	return 0;
	664
	665	err_unmap2:
c2828661	666	sc6000_setup_board(*vport, 0);
e307258d KH	667	release_region(mss_port[dev], 4);
	668	err_unmap1:
	669	release_region(port[dev], 0x10);
	670	err_exit:
	671	snd_card_free(card);
	672	return err;
	673	}
	674
1bff292e	675	static int snd_sc6000_remove(struct device *devptr, unsigned int dev)
e307258d	676	{
c2828661 KH	677	struct snd_card *card = dev_get_drvdata(devptr);
	678	char __iomem **vport = card->private_data;
	679
	680	if (sc6000_setup_board(*vport, 0) < 0)
	681	snd_printk(KERN_WARNING "sc6000_setup_board failed on exit!\n");
	682
e307258d KH	683	release_region(port[dev], 0x10);
	684	release_region(mss_port[dev], 4);
	685
c2828661	686	snd_card_free(card);
e307258d KH	687	return 0;
	688	}
	689
	690	static struct isa_driver snd_sc6000_driver = {
	691	.match = snd_sc6000_match,
	692	.probe = snd_sc6000_probe,
1bff292e	693	.remove = snd_sc6000_remove,
e307258d KH	694	/* FIXME: suspend/resume */
	695	.driver = {
	696	.name = DRV_NAME,
	697	},
	698	};
	699
	700
af486dd8	701	module_isa_driver(snd_sc6000_driver, SNDRV_CARDS);