[linux.git] / sound / isa / cmi8328.c

/*
 * Driver for C-Media CMI8328-based soundcards, such as AudioExcel AV500
 * Copyright (c) 2012 Ondrej Zary
 *
 * AudioExcel AV500 card consists of:
 *  - CMI8328 - main chip (SB Pro emulation, gameport, OPL3, MPU401, CD-ROM)
 *  - CS4231A - WSS codec
 *  - Dream SAM9233+GMS950400+RAM+ROM: Wavetable MIDI, connected to MPU401
 */

#include <linux/init.h>
#include <linux/isa.h>
#include <linux/module.h>
#include <linux/gameport.h>
#include <asm/dma.h>
#include <sound/core.h>
#include <sound/wss.h>
#include <sound/opl3.h>
#include <sound/mpu401.h>
#define SNDRV_LEGACY_FIND_FREE_IOPORT
#define SNDRV_LEGACY_FIND_FREE_IRQ
#define SNDRV_LEGACY_FIND_FREE_DMA
#include <sound/initval.h>

MODULE_AUTHOR("Ondrej Zary <[email protected]>");
MODULE_DESCRIPTION("C-Media CMI8328");
MODULE_LICENSE("GPL");

#if defined(CONFIG_GAMEPORT) || defined(CONFIG_GAMEPORT_MODULE)
#define SUPPORT_JOYSTICK 1
#endif

/* I/O port is configured by jumpers on the card to one of these */
static int cmi8328_ports[] = { 0x530, 0xe80, 0xf40, 0x604 };
#define CMI8328_MAX	ARRAY_SIZE(cmi8328_ports)

static int index[CMI8328_MAX] =     {[0 ... (CMI8328_MAX-1)] = -1};
static char *id[CMI8328_MAX] =      {[0 ... (CMI8328_MAX-1)] = NULL};
static long port[CMI8328_MAX] =     {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_PORT};
static int irq[CMI8328_MAX] =       {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_IRQ};
static int dma1[CMI8328_MAX] =      {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_DMA};
static int dma2[CMI8328_MAX] =      {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_DMA};
static long mpuport[CMI8328_MAX] =  {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_PORT};
static int mpuirq[CMI8328_MAX] =    {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_IRQ};
#ifdef SUPPORT_JOYSTICK
static bool gameport[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = true};
#endif

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for CMI8328 soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for CMI8328 soundcard.");

module_param_hw_array(port, long, ioport, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for CMI8328 driver.");
module_param_hw_array(irq, int, irq, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for CMI8328 driver.");
module_param_hw_array(dma1, int, dma, NULL, 0444);
MODULE_PARM_DESC(dma1, "DMA1 for CMI8328 driver.");
module_param_hw_array(dma2, int, dma, NULL, 0444);
MODULE_PARM_DESC(dma2, "DMA2 for CMI8328 driver.");

module_param_hw_array(mpuport, long, ioport, NULL, 0444);
MODULE_PARM_DESC(mpuport, "MPU-401 port # for CMI8328 driver.");
module_param_hw_array(mpuirq, int, irq, NULL, 0444);
MODULE_PARM_DESC(mpuirq, "IRQ # for CMI8328 MPU-401 port.");
#ifdef SUPPORT_JOYSTICK
module_param_array(gameport, bool, NULL, 0444);
MODULE_PARM_DESC(gameport, "Enable gameport.");
#endif

struct snd_cmi8328 {
	u16 port;
	u8 cfg[3];
	u8 wss_cfg;
	struct snd_card *card;
	struct snd_wss *wss;
#ifdef SUPPORT_JOYSTICK
	struct gameport *gameport;
#endif
};

/* CMI8328 configuration registers */
#define CFG1 0x61
#define CFG1_SB_DISABLE	(1 << 0)
#define CFG1_GAMEPORT	(1 << 1)
/*
 * bit 0:    SB: 0=enabled, 1=disabled
 * bit 1:    gameport: 0=disabled, 1=enabled
 * bits 2-4: SB IRQ: 001=3, 010=5, 011=7, 100=9, 101=10, 110=11
 * bits 5-6: SB DMA: 00=disabled (when SB disabled), 01=DMA0, 10=DMA1, 11=DMA3
 * bit 7:    SB port: 0=0x220, 1=0x240
 */
#define CFG2 0x62
#define CFG2_MPU_ENABLE (1 << 2)
/*
 * bits 0-1: CD-ROM mode: 00=disabled, 01=Panasonic, 10=Sony/Mitsumi/Wearnes,
			  11=IDE
 * bit 2:    MPU401: 0=disabled, 1=enabled
 * bits 3-4: MPU401 IRQ: 00=3, 01=5, 10=7, 11=9,
 * bits 5-7: MPU401 port: 000=0x300, 001=0x310, 010=0x320, 011=0x330, 100=0x332,
			  101=0x334, 110=0x336
 */
#define CFG3 0x63
/*
 * bits 0-2: CD-ROM IRQ: 000=disabled, 001=3, 010=5, 011=7, 100=9, 101=10,
			 110=11
 * bits 3-4: CD-ROM DMA: 00=disabled, 01=DMA0, 10=DMA1, 11=DMA3
 * bits 5-7: CD-ROM port: 000=0x300, 001=0x310, 010=0x320, 011=0x330, 100=0x340,
			  101=0x350, 110=0x360, 111=0x370
 */

static u8 snd_cmi8328_cfg_read(u16 port, u8 reg)
{
	outb(0x43, port + 3);
	outb(0x21, port + 3);
	outb(reg, port + 3);
	return inb(port);
}

static void snd_cmi8328_cfg_write(u16 port, u8 reg, u8 val)
{
	outb(0x43, port + 3);
	outb(0x21, port + 3);
	outb(reg, port + 3);
	outb(val, port + 3);	/* yes, value goes to the same port as index */
}

#ifdef CONFIG_PM
static void snd_cmi8328_cfg_save(u16 port, u8 cfg[])
{
	cfg[0] = snd_cmi8328_cfg_read(port, CFG1);
	cfg[1] = snd_cmi8328_cfg_read(port, CFG2);
	cfg[2] = snd_cmi8328_cfg_read(port, CFG3);
}

static void snd_cmi8328_cfg_restore(u16 port, u8 cfg[])
{
	snd_cmi8328_cfg_write(port, CFG1, cfg[0]);
	snd_cmi8328_cfg_write(port, CFG2, cfg[1]);
	snd_cmi8328_cfg_write(port, CFG3, cfg[2]);
}
#endif /* CONFIG_PM */

static int snd_cmi8328_mixer(struct snd_wss *chip)
{
	struct snd_card *card;
	struct snd_ctl_elem_id id1, id2;
	int err;

	card = chip->card;

	memset(&id1, 0, sizeof(id1));
	memset(&id2, 0, sizeof(id2));
	id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	/* rename AUX0 switch to CD */
	strcpy(id1.name, "Aux Playback Switch");
	strcpy(id2.name, "CD Playback Switch");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0) {
		snd_printk(KERN_ERR "error renaming control\n");
		return err;
	}
	/* rename AUX0 volume to CD */
	strcpy(id1.name, "Aux Playback Volume");
	strcpy(id2.name, "CD Playback Volume");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0) {
		snd_printk(KERN_ERR "error renaming control\n");
		return err;
	}
	/* rename AUX1 switch to Synth */
	strcpy(id1.name, "Aux Playback Switch");
	id1.index = 1;
	strcpy(id2.name, "Synth Playback Switch");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0) {
		snd_printk(KERN_ERR "error renaming control\n");
		return err;
	}
	/* rename AUX1 volume to Synth */
	strcpy(id1.name, "Aux Playback Volume");
	id1.index = 1;
	strcpy(id2.name, "Synth Playback Volume");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0) {
		snd_printk(KERN_ERR "error renaming control\n");
		return err;
	}

	return 0;
}

/* find index of an item in "-1"-ended array */
int array_find(int array[], int item)
{
	int i;

	for (i = 0; array[i] != -1; i++)
		if (array[i] == item)
			return i;

	return -1;
}
/* the same for long */
int array_find_l(long array[], long item)
{
	int i;

	for (i = 0; array[i] != -1; i++)
		if (array[i] == item)
			return i;

	return -1;
}

static int snd_cmi8328_probe(struct device *pdev, unsigned int ndev)
{
	struct snd_card *card;
	struct snd_opl3 *opl3;
	struct snd_cmi8328 *cmi;
#ifdef SUPPORT_JOYSTICK
	struct resource *res;
#endif
	int err, pos;
	static long mpu_ports[] = { 0x330, 0x300, 0x310, 0x320, 0x332, 0x334,
				   0x336, -1 };
	static u8 mpu_port_bits[] = { 3, 0, 1, 2, 4, 5, 6 };
	static int mpu_irqs[] = { 9, 7, 5, 3, -1 };
	static u8 mpu_irq_bits[] = { 3, 2, 1, 0 };
	static int irqs[] = { 9, 10, 11, 7, -1 };
	static u8 irq_bits[] = { 2, 3, 4, 1 };
	static int dma1s[] = { 3, 1, 0, -1 };
	static u8 dma_bits[] = { 3, 2, 1 };
	static int dma2s[][2] = { {1, -1}, {0, -1}, {-1, -1}, {0, -1} };
	u16 port = cmi8328_ports[ndev];
	u8 val;

	/* 0xff is invalid configuration (but settable - hope it isn't set) */
	if (snd_cmi8328_cfg_read(port, CFG1) == 0xff)
		return -ENODEV;
	/* the SB disable bit must NEVER EVER be cleared or the WSS dies */
	snd_cmi8328_cfg_write(port, CFG1, CFG1_SB_DISABLE);
	if (snd_cmi8328_cfg_read(port, CFG1) != CFG1_SB_DISABLE)
		return -ENODEV;
	/* disable everything first */
	snd_cmi8328_cfg_write(port, CFG2, 0);	/* disable CDROM and MPU401 */
	snd_cmi8328_cfg_write(port, CFG3, 0);	/* disable CDROM IRQ and DMA */

	if (irq[ndev] == SNDRV_AUTO_IRQ) {
		irq[ndev] = snd_legacy_find_free_irq(irqs);
		if (irq[ndev] < 0) {
			snd_printk(KERN_ERR "unable to find a free IRQ\n");
			return -EBUSY;
		}
	}
	if (dma1[ndev] == SNDRV_AUTO_DMA) {
		dma1[ndev] = snd_legacy_find_free_dma(dma1s);
		if (dma1[ndev] < 0) {
			snd_printk(KERN_ERR "unable to find a free DMA1\n");
			return -EBUSY;
		}
	}
	if (dma2[ndev] == SNDRV_AUTO_DMA) {
		dma2[ndev] = snd_legacy_find_free_dma(dma2s[dma1[ndev] % 4]);
		if (dma2[ndev] < 0) {
			snd_printk(KERN_WARNING "unable to find a free DMA2, full-duplex will not work\n");
			dma2[ndev] = -1;
		}
	}
	/* configure WSS IRQ... */
	pos = array_find(irqs, irq[ndev]);
	if (pos < 0) {
		snd_printk(KERN_ERR "invalid IRQ %d\n", irq[ndev]);
		return -EINVAL;
	}
	val = irq_bits[pos] << 3;
	/* ...and DMA... */
	pos = array_find(dma1s, dma1[ndev]);
	if (pos < 0) {
		snd_printk(KERN_ERR "invalid DMA1 %d\n", dma1[ndev]);
		return -EINVAL;
	}
	val |= dma_bits[pos];
	/* ...and DMA2 */
	if (dma2[ndev] >= 0 && dma1[ndev] != dma2[ndev]) {
		pos = array_find(dma2s[dma1[ndev]], dma2[ndev]);
		if (pos < 0) {
			snd_printk(KERN_ERR "invalid DMA2 %d\n", dma2[ndev]);
			return -EINVAL;
		}
		val |= 0x04; /* enable separate capture DMA */
	}
	outb(val, port);

	err = snd_card_new(pdev, index[ndev], id[ndev], THIS_MODULE,
			   sizeof(struct snd_cmi8328), &card);
	if (err < 0)
		return err;
	cmi = card->private_data;
	cmi->card = card;
	cmi->port = port;
	cmi->wss_cfg = val;

	err = snd_wss_create(card, port + 4, -1, irq[ndev], dma1[ndev],
			dma2[ndev], WSS_HW_DETECT, 0, &cmi->wss);
	if (err < 0)
		goto error;

	err = snd_wss_pcm(cmi->wss, 0);
	if (err < 0)
		goto error;

	err = snd_wss_mixer(cmi->wss);
	if (err < 0)
		goto error;
	err = snd_cmi8328_mixer(cmi->wss);
	if (err < 0)
		goto error;

	if (snd_wss_timer(cmi->wss, 0) < 0)
		snd_printk(KERN_WARNING "error initializing WSS timer\n");

	if (mpuport[ndev] == SNDRV_AUTO_PORT) {
		mpuport[ndev] = snd_legacy_find_free_ioport(mpu_ports, 2);
		if (mpuport[ndev] < 0)
			snd_printk(KERN_ERR "unable to find a free MPU401 port\n");
	}
	if (mpuirq[ndev] == SNDRV_AUTO_IRQ) {
		mpuirq[ndev] = snd_legacy_find_free_irq(mpu_irqs);
		if (mpuirq[ndev] < 0)
			snd_printk(KERN_ERR "unable to find a free MPU401 IRQ\n");
	}
	/* enable and configure MPU401 */
	if (mpuport[ndev] > 0 && mpuirq[ndev] > 0) {
		val = CFG2_MPU_ENABLE;
		pos = array_find_l(mpu_ports, mpuport[ndev]);
		if (pos < 0)
			snd_printk(KERN_WARNING "invalid MPU401 port 0x%lx\n",
								mpuport[ndev]);
		else {
			val |= mpu_port_bits[pos] << 5;
			pos = array_find(mpu_irqs, mpuirq[ndev]);
			if (pos < 0)
				snd_printk(KERN_WARNING "invalid MPU401 IRQ %d\n",
								mpuirq[ndev]);
			else {
				val |= mpu_irq_bits[pos] << 3;
				snd_cmi8328_cfg_write(port, CFG2, val);
				if (snd_mpu401_uart_new(card, 0,
						MPU401_HW_MPU401, mpuport[ndev],
						0, mpuirq[ndev], NULL) < 0)
					snd_printk(KERN_ERR "error initializing MPU401\n");
			}
		}
	}
	/* OPL3 is hardwired to 0x388 and cannot be disabled */
	if (snd_opl3_create(card, 0x388, 0x38a, OPL3_HW_AUTO, 0, &opl3) < 0)
		snd_printk(KERN_ERR "error initializing OPL3\n");
	else
		if (snd_opl3_hwdep_new(opl3, 0, 1, NULL) < 0)
			snd_printk(KERN_WARNING "error initializing OPL3 hwdep\n");

	strcpy(card->driver, "CMI8328");
	strcpy(card->shortname, "C-Media CMI8328");
	sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d,%d",
		card->shortname, cmi->wss->port, irq[ndev], dma1[ndev],
		(dma2[ndev] >= 0) ? dma2[ndev] : dma1[ndev]);

	dev_set_drvdata(pdev, card);
	err = snd_card_register(card);
	if (err < 0)
		goto error;
#ifdef SUPPORT_JOYSTICK
	if (!gameport[ndev])
		return 0;
	/* gameport is hardwired to 0x200 */
	res = request_region(0x200, 8, "CMI8328 gameport");
	if (!res)
		snd_printk(KERN_WARNING "unable to allocate gameport I/O port\n");
	else {
		struct gameport *gp = cmi->gameport = gameport_allocate_port();
		if (!cmi->gameport)
			release_and_free_resource(res);
		else {
			gameport_set_name(gp, "CMI8328 Gameport");
			gameport_set_phys(gp, "%s/gameport0", dev_name(pdev));
			gameport_set_dev_parent(gp, pdev);
			gp->io = 0x200;
			gameport_set_port_data(gp, res);
			/* Enable gameport */
			snd_cmi8328_cfg_write(port, CFG1,
					CFG1_SB_DISABLE | CFG1_GAMEPORT);
			gameport_register_port(gp);
		}
	}
#endif
	return 0;
error:
	snd_card_free(card);

	return err;
}

static int snd_cmi8328_remove(struct device *pdev, unsigned int dev)
{
	struct snd_card *card = dev_get_drvdata(pdev);
	struct snd_cmi8328 *cmi = card->private_data;

#ifdef SUPPORT_JOYSTICK
	if (cmi->gameport) {
		struct resource *res = gameport_get_port_data(cmi->gameport);
		gameport_unregister_port(cmi->gameport);
		release_and_free_resource(res);
	}
#endif
	/* disable everything */
	snd_cmi8328_cfg_write(cmi->port, CFG1, CFG1_SB_DISABLE);
	snd_cmi8328_cfg_write(cmi->port, CFG2, 0);
	snd_cmi8328_cfg_write(cmi->port, CFG3, 0);
	snd_card_free(card);
	return 0;
}

#ifdef CONFIG_PM
static int snd_cmi8328_suspend(struct device *pdev, unsigned int n,
				pm_message_t state)
{
	struct snd_card *card = dev_get_drvdata(pdev);
	struct snd_cmi8328 *cmi;

	if (!card)	/* ignore absent devices */
		return 0;
	cmi = card->private_data;
	snd_cmi8328_cfg_save(cmi->port, cmi->cfg);
	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
	snd_pcm_suspend_all(cmi->wss->pcm);
	cmi->wss->suspend(cmi->wss);

	return 0;
}

static int snd_cmi8328_resume(struct device *pdev, unsigned int n)
{
	struct snd_card *card = dev_get_drvdata(pdev);
	struct snd_cmi8328 *cmi;

	if (!card)	/* ignore absent devices */
		return 0;
	cmi = card->private_data;
	snd_cmi8328_cfg_restore(cmi->port, cmi->cfg);
	outb(cmi->wss_cfg, cmi->port);
	cmi->wss->resume(cmi->wss);
	snd_power_change_state(card, SNDRV_CTL_POWER_D0);

	return 0;
}
#endif

static struct isa_driver snd_cmi8328_driver = {
	.probe		= snd_cmi8328_probe,
	.remove		= snd_cmi8328_remove,
#ifdef CONFIG_PM
	.suspend	= snd_cmi8328_suspend,
	.resume		= snd_cmi8328_resume,
#endif
	.driver		= {
		.name	= "cmi8328"
	},
};

module_isa_driver(snd_cmi8328_driver, CMI8328_MAX);
Commit	Line	Data
f9933487 OZ	1	/*
	2	* Driver for C-Media CMI8328-based soundcards, such as AudioExcel AV500
	3	* Copyright (c) 2012 Ondrej Zary
	4	*
	5	* AudioExcel AV500 card consists of:
	6	* - CMI8328 - main chip (SB Pro emulation, gameport, OPL3, MPU401, CD-ROM)
	7	* - CS4231A - WSS codec
	8	* - Dream SAM9233+GMS950400+RAM+ROM: Wavetable MIDI, connected to MPU401
	9	*/
	10
	11	#include <linux/init.h>
	12	#include <linux/isa.h>
	13	#include <linux/module.h>
	14	#include <linux/gameport.h>
	15	#include <asm/dma.h>
	16	#include <sound/core.h>
	17	#include <sound/wss.h>
	18	#include <sound/opl3.h>
	19	#include <sound/mpu401.h>
	20	#define SNDRV_LEGACY_FIND_FREE_IOPORT
	21	#define SNDRV_LEGACY_FIND_FREE_IRQ
	22	#define SNDRV_LEGACY_FIND_FREE_DMA
	23	#include <sound/initval.h>
	24
	25	MODULE_AUTHOR("Ondrej Zary <[email protected]>");
	26	MODULE_DESCRIPTION("C-Media CMI8328");
	27	MODULE_LICENSE("GPL");
	28
	29	#if defined(CONFIG_GAMEPORT) \|\| defined(CONFIG_GAMEPORT_MODULE)
	30	#define SUPPORT_JOYSTICK 1
	31	#endif
	32
	33	/* I/O port is configured by jumpers on the card to one of these */
	34	static int cmi8328_ports[] = { 0x530, 0xe80, 0xf40, 0x604 };
	35	#define CMI8328_MAX ARRAY_SIZE(cmi8328_ports)
	36
	37	static int index[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = -1};
	38	static char *id[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = NULL};
	39	static long port[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_PORT};
	40	static int irq[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_IRQ};
	41	static int dma1[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_DMA};
	42	static int dma2[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_DMA};
	43	static long mpuport[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_PORT};
	44	static int mpuirq[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = SNDRV_AUTO_IRQ};
	45	#ifdef SUPPORT_JOYSTICK
	46	static bool gameport[CMI8328_MAX] = {[0 ... (CMI8328_MAX-1)] = true};
	47	#endif
	48
	49	module_param_array(index, int, NULL, 0444);
	50	MODULE_PARM_DESC(index, "Index value for CMI8328 soundcard.");
	51	module_param_array(id, charp, NULL, 0444);
	52	MODULE_PARM_DESC(id, "ID string for CMI8328 soundcard.");
	53
e992ef57	54	module_param_hw_array(port, long, ioport, NULL, 0444);
f9933487	55	MODULE_PARM_DESC(port, "Port # for CMI8328 driver.");
e992ef57	56	module_param_hw_array(irq, int, irq, NULL, 0444);
f9933487	57	MODULE_PARM_DESC(irq, "IRQ # for CMI8328 driver.");
e992ef57	58	module_param_hw_array(dma1, int, dma, NULL, 0444);
f9933487	59	MODULE_PARM_DESC(dma1, "DMA1 for CMI8328 driver.");
e992ef57	60	module_param_hw_array(dma2, int, dma, NULL, 0444);
f9933487 OZ	61	MODULE_PARM_DESC(dma2, "DMA2 for CMI8328 driver.");
f9933487 OZ	62
e992ef57	63	module_param_hw_array(mpuport, long, ioport, NULL, 0444);
f9933487	64	MODULE_PARM_DESC(mpuport, "MPU-401 port # for CMI8328 driver.");
e992ef57	65	module_param_hw_array(mpuirq, int, irq, NULL, 0444);
f9933487 OZ	66	MODULE_PARM_DESC(mpuirq, "IRQ # for CMI8328 MPU-401 port.");
	67	#ifdef SUPPORT_JOYSTICK
	68	module_param_array(gameport, bool, NULL, 0444);
	69	MODULE_PARM_DESC(gameport, "Enable gameport.");
	70	#endif
	71
	72	struct snd_cmi8328 {
	73	u16 port;
	74	u8 cfg[3];
	75	u8 wss_cfg;
	76	struct snd_card *card;
	77	struct snd_wss *wss;
	78	#ifdef SUPPORT_JOYSTICK
	79	struct gameport *gameport;
	80	#endif
	81	};
	82
	83	/* CMI8328 configuration registers */
	84	#define CFG1 0x61
	85	#define CFG1_SB_DISABLE (1 << 0)
	86	#define CFG1_GAMEPORT (1 << 1)
	87	/*
	88	* bit 0: SB: 0=enabled, 1=disabled
	89	* bit 1: gameport: 0=disabled, 1=enabled
	90	* bits 2-4: SB IRQ: 001=3, 010=5, 011=7, 100=9, 101=10, 110=11
	91	* bits 5-6: SB DMA: 00=disabled (when SB disabled), 01=DMA0, 10=DMA1, 11=DMA3
	92	* bit 7: SB port: 0=0x220, 1=0x240
	93	*/
	94	#define CFG2 0x62
	95	#define CFG2_MPU_ENABLE (1 << 2)
	96	/*
	97	* bits 0-1: CD-ROM mode: 00=disabled, 01=Panasonic, 10=Sony/Mitsumi/Wearnes,
	98	11=IDE
	99	* bit 2: MPU401: 0=disabled, 1=enabled
	100	* bits 3-4: MPU401 IRQ: 00=3, 01=5, 10=7, 11=9,
	101	* bits 5-7: MPU401 port: 000=0x300, 001=0x310, 010=0x320, 011=0x330, 100=0x332,
	102	101=0x334, 110=0x336
	103	*/
	104	#define CFG3 0x63
	105	/*
	106	* bits 0-2: CD-ROM IRQ: 000=disabled, 001=3, 010=5, 011=7, 100=9, 101=10,
	107	110=11
	108	* bits 3-4: CD-ROM DMA: 00=disabled, 01=DMA0, 10=DMA1, 11=DMA3
	109	* bits 5-7: CD-ROM port: 000=0x300, 001=0x310, 010=0x320, 011=0x330, 100=0x340,
	110	101=0x350, 110=0x360, 111=0x370
	111	*/
	112
	113	static u8 snd_cmi8328_cfg_read(u16 port, u8 reg)
	114	{
	115	outb(0x43, port + 3);
	116	outb(0x21, port + 3);
	117	outb(reg, port + 3);
	118	return inb(port);
	119	}
	120
	121	static void snd_cmi8328_cfg_write(u16 port, u8 reg, u8 val)
	122	{
	123	outb(0x43, port + 3);
	124	outb(0x21, port + 3);
	125	outb(reg, port + 3);
	126	outb(val, port + 3); /* yes, value goes to the same port as index */
	127	}
	128
77ed16cc	129	#ifdef CONFIG_PM
f9933487 OZ	130	static void snd_cmi8328_cfg_save(u16 port, u8 cfg[])
	131	{
	132	cfg[0] = snd_cmi8328_cfg_read(port, CFG1);
	133	cfg[1] = snd_cmi8328_cfg_read(port, CFG2);
	134	cfg[2] = snd_cmi8328_cfg_read(port, CFG3);
	135	}
	136
	137	static void snd_cmi8328_cfg_restore(u16 port, u8 cfg[])
	138	{
	139	snd_cmi8328_cfg_write(port, CFG1, cfg[0]);
	140	snd_cmi8328_cfg_write(port, CFG2, cfg[1]);
	141	snd_cmi8328_cfg_write(port, CFG3, cfg[2]);
	142	}
77ed16cc	143	#endif /* CONFIG_PM */
f9933487	144
1bff292e	145	static int snd_cmi8328_mixer(struct snd_wss *chip)
f9933487 OZ	146	{
	147	struct snd_card *card;
	148	struct snd_ctl_elem_id id1, id2;
	149	int err;
	150
	151	card = chip->card;
	152
	153	memset(&id1, 0, sizeof(id1));
	154	memset(&id2, 0, sizeof(id2));
	155	id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	156	/* rename AUX0 switch to CD */
	157	strcpy(id1.name, "Aux Playback Switch");
	158	strcpy(id2.name, "CD Playback Switch");
	159	err = snd_ctl_rename_id(card, &id1, &id2);
	160	if (err < 0) {
	161	snd_printk(KERN_ERR "error renaming control\n");
	162	return err;
	163	}
	164	/* rename AUX0 volume to CD */
	165	strcpy(id1.name, "Aux Playback Volume");
	166	strcpy(id2.name, "CD Playback Volume");
	167	err = snd_ctl_rename_id(card, &id1, &id2);
	168	if (err < 0) {
	169	snd_printk(KERN_ERR "error renaming control\n");
	170	return err;
	171	}
	172	/* rename AUX1 switch to Synth */
	173	strcpy(id1.name, "Aux Playback Switch");
	174	id1.index = 1;
	175	strcpy(id2.name, "Synth Playback Switch");
	176	err = snd_ctl_rename_id(card, &id1, &id2);
	177	if (err < 0) {
	178	snd_printk(KERN_ERR "error renaming control\n");
	179	return err;
	180	}
	181	/* rename AUX1 volume to Synth */
	182	strcpy(id1.name, "Aux Playback Volume");
	183	id1.index = 1;
	184	strcpy(id2.name, "Synth Playback Volume");
	185	err = snd_ctl_rename_id(card, &id1, &id2);
	186	if (err < 0) {
	187	snd_printk(KERN_ERR "error renaming control\n");
	188	return err;
	189	}
	190
	191	return 0;
	192	}
	193
	194	/* find index of an item in "-1"-ended array */
	195	int array_find(int array[], int item)
	196	{
	197	int i;
	198
	199	for (i = 0; array[i] != -1; i++)
	200	if (array[i] == item)
	201	return i;
	202
	203	return -1;
	204	}
	205	/* the same for long */
	206	int array_find_l(long array[], long item)
	207	{
	208	int i;
	209
210	for (i = 0; array[i] != -1; i++)
211	if (array[i] == item)
212	return i;
213
214	return -1;
215	}
216
1bff292e	217	static int snd_cmi8328_probe(struct device *pdev, unsigned int ndev)
f9933487 OZ	218	{
	219	struct snd_card *card;
	220	struct snd_opl3 *opl3;
	221	struct snd_cmi8328 *cmi;
	222	#ifdef SUPPORT_JOYSTICK
	223	struct resource *res;
	224	#endif
	225	int err, pos;
	226	static long mpu_ports[] = { 0x330, 0x300, 0x310, 0x320, 0x332, 0x334,
	227	0x336, -1 };
	228	static u8 mpu_port_bits[] = { 3, 0, 1, 2, 4, 5, 6 };
	229	static int mpu_irqs[] = { 9, 7, 5, 3, -1 };
	230	static u8 mpu_irq_bits[] = { 3, 2, 1, 0 };
	231	static int irqs[] = { 9, 10, 11, 7, -1 };
	232	static u8 irq_bits[] = { 2, 3, 4, 1 };
	233	static int dma1s[] = { 3, 1, 0, -1 };
	234	static u8 dma_bits[] = { 3, 2, 1 };
	235	static int dma2s[][2] = { {1, -1}, {0, -1}, {-1, -1}, {0, -1} };
	236	u16 port = cmi8328_ports[ndev];
	237	u8 val;
	238
	239	/* 0xff is invalid configuration (but settable - hope it isn't set) */
	240	if (snd_cmi8328_cfg_read(port, CFG1) == 0xff)
	241	return -ENODEV;
	242	/* the SB disable bit must NEVER EVER be cleared or the WSS dies */
	243	snd_cmi8328_cfg_write(port, CFG1, CFG1_SB_DISABLE);
	244	if (snd_cmi8328_cfg_read(port, CFG1) != CFG1_SB_DISABLE)
	245	return -ENODEV;
	246	/* disable everything first */
	247	snd_cmi8328_cfg_write(port, CFG2, 0); /* disable CDROM and MPU401 */
	248	snd_cmi8328_cfg_write(port, CFG3, 0); /* disable CDROM IRQ and DMA */
	249
	250	if (irq[ndev] == SNDRV_AUTO_IRQ) {
	251	irq[ndev] = snd_legacy_find_free_irq(irqs);
	252	if (irq[ndev] < 0) {
	253	snd_printk(KERN_ERR "unable to find a free IRQ\n");
	254	return -EBUSY;
	255	}
	256	}
	257	if (dma1[ndev] == SNDRV_AUTO_DMA) {
	258	dma1[ndev] = snd_legacy_find_free_dma(dma1s);
	259	if (dma1[ndev] < 0) {
	260	snd_printk(KERN_ERR "unable to find a free DMA1\n");
	261	return -EBUSY;
	262	}
	263	}
	264	if (dma2[ndev] == SNDRV_AUTO_DMA) {
	265	dma2[ndev] = snd_legacy_find_free_dma(dma2s[dma1[ndev] % 4]);
	266	if (dma2[ndev] < 0) {
	267	snd_printk(KERN_WARNING "unable to find a free DMA2, full-duplex will not work\n");
	268	dma2[ndev] = -1;
	269	}
	270	}
	271	/* configure WSS IRQ... */
	272	pos = array_find(irqs, irq[ndev]);
	273	if (pos < 0) {
	274	snd_printk(KERN_ERR "invalid IRQ %d\n", irq[ndev]);
	275	return -EINVAL;
	276	}
	277	val = irq_bits[pos] << 3;
	278	/* ...and DMA... */
	279	pos = array_find(dma1s, dma1[ndev]);
	280	if (pos < 0) {
	281	snd_printk(KERN_ERR "invalid DMA1 %d\n", dma1[ndev]);
282	return -EINVAL;
283	}
284	val \|= dma_bits[pos];
285	/* ...and DMA2 */
286	if (dma2[ndev] >= 0 && dma1[ndev] != dma2[ndev]) {
287	pos = array_find(dma2s[dma1[ndev]], dma2[ndev]);
288	if (pos < 0) {
289	snd_printk(KERN_ERR "invalid DMA2 %d\n", dma2[ndev]);
290	return -EINVAL;
291	}
292	val \|= 0x04; /* enable separate capture DMA */
293	}
294	outb(val, port);
295
4323cc4d TI	296	err = snd_card_new(pdev, index[ndev], id[ndev], THIS_MODULE,
4323cc4d TI	297	sizeof(struct snd_cmi8328), &card);
f9933487 OZ	298	if (err < 0)
	299	return err;
	300	cmi = card->private_data;
	301	cmi->card = card;
	302	cmi->port = port;
	303	cmi->wss_cfg = val;
f9933487 OZ	304
	305	err = snd_wss_create(card, port + 4, -1, irq[ndev], dma1[ndev],
	306	dma2[ndev], WSS_HW_DETECT, 0, &cmi->wss);
	307	if (err < 0)
	308	goto error;
	309
fa60c065	310	err = snd_wss_pcm(cmi->wss, 0);
f9933487 OZ	311	if (err < 0)
	312	goto error;
	313
	314	err = snd_wss_mixer(cmi->wss);
	315	if (err < 0)
	316	goto error;
	317	err = snd_cmi8328_mixer(cmi->wss);
	318	if (err < 0)
	319	goto error;
	320
fa60c065	321	if (snd_wss_timer(cmi->wss, 0) < 0)
f9933487 OZ	322	snd_printk(KERN_WARNING "error initializing WSS timer\n");
	323
	324	if (mpuport[ndev] == SNDRV_AUTO_PORT) {
	325	mpuport[ndev] = snd_legacy_find_free_ioport(mpu_ports, 2);
	326	if (mpuport[ndev] < 0)
	327	snd_printk(KERN_ERR "unable to find a free MPU401 port\n");
	328	}
	329	if (mpuirq[ndev] == SNDRV_AUTO_IRQ) {
	330	mpuirq[ndev] = snd_legacy_find_free_irq(mpu_irqs);
	331	if (mpuirq[ndev] < 0)
	332	snd_printk(KERN_ERR "unable to find a free MPU401 IRQ\n");
	333	}
	334	/* enable and configure MPU401 */
	335	if (mpuport[ndev] > 0 && mpuirq[ndev] > 0) {
	336	val = CFG2_MPU_ENABLE;
	337	pos = array_find_l(mpu_ports, mpuport[ndev]);
	338	if (pos < 0)
	339	snd_printk(KERN_WARNING "invalid MPU401 port 0x%lx\n",
	340	mpuport[ndev]);
	341	else {
	342	val \|= mpu_port_bits[pos] << 5;
	343	pos = array_find(mpu_irqs, mpuirq[ndev]);
	344	if (pos < 0)
	345	snd_printk(KERN_WARNING "invalid MPU401 IRQ %d\n",
	346	mpuirq[ndev]);
	347	else {
	348	val \|= mpu_irq_bits[pos] << 3;
	349	snd_cmi8328_cfg_write(port, CFG2, val);
	350	if (snd_mpu401_uart_new(card, 0,
	351	MPU401_HW_MPU401, mpuport[ndev],
	352	0, mpuirq[ndev], NULL) < 0)
	353	snd_printk(KERN_ERR "error initializing MPU401\n");
	354	}
	355	}
	356	}
	357	/* OPL3 is hardwired to 0x388 and cannot be disabled */
	358	if (snd_opl3_create(card, 0x388, 0x38a, OPL3_HW_AUTO, 0, &opl3) < 0)
	359	snd_printk(KERN_ERR "error initializing OPL3\n");
	360	else
	361	if (snd_opl3_hwdep_new(opl3, 0, 1, NULL) < 0)
	362	snd_printk(KERN_WARNING "error initializing OPL3 hwdep\n");
	363
	364	strcpy(card->driver, "CMI8328");
	365	strcpy(card->shortname, "C-Media CMI8328");
	366	sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d,%d",
	367	card->shortname, cmi->wss->port, irq[ndev], dma1[ndev],
	368	(dma2[ndev] >= 0) ? dma2[ndev] : dma1[ndev]);
	369
	370	dev_set_drvdata(pdev, card);
	371	err = snd_card_register(card);
	372	if (err < 0)
	373	goto error;
	374	#ifdef SUPPORT_JOYSTICK
	375	if (!gameport[ndev])
	376	return 0;
	377	/* gameport is hardwired to 0x200 */
	378	res = request_region(0x200, 8, "CMI8328 gameport");
	379	if (!res)
	380	snd_printk(KERN_WARNING "unable to allocate gameport I/O port\n");
	381	else {
	382	struct gameport *gp = cmi->gameport = gameport_allocate_port();
	383	if (!cmi->gameport)
	384	release_and_free_resource(res);
	385	else {
386	gameport_set_name(gp, "CMI8328 Gameport");
387	gameport_set_phys(gp, "%s/gameport0", dev_name(pdev));
388	gameport_set_dev_parent(gp, pdev);
389	gp->io = 0x200;
390	gameport_set_port_data(gp, res);
391	/* Enable gameport */
392	snd_cmi8328_cfg_write(port, CFG1,
393	CFG1_SB_DISABLE \| CFG1_GAMEPORT);
394	gameport_register_port(gp);
395	}
396	}
397	#endif
398	return 0;
399	error:
400	snd_card_free(card);
401
402	return err;
403	}
404
1bff292e	405	static int snd_cmi8328_remove(struct device *pdev, unsigned int dev)
f9933487 OZ	406	{
f9933487 OZ	407	struct snd_card *card = dev_get_drvdata(pdev);
f9933487	408	struct snd_cmi8328 *cmi = card->private_data;
56244d08 TI	409
56244d08 TI	410	#ifdef SUPPORT_JOYSTICK
f9933487 OZ	411	if (cmi->gameport) {
	412	struct resource *res = gameport_get_port_data(cmi->gameport);
	413	gameport_unregister_port(cmi->gameport);
	414	release_and_free_resource(res);
	415	}
	416	#endif
	417	/* disable everything */
	418	snd_cmi8328_cfg_write(cmi->port, CFG1, CFG1_SB_DISABLE);
	419	snd_cmi8328_cfg_write(cmi->port, CFG2, 0);
	420	snd_cmi8328_cfg_write(cmi->port, CFG3, 0);
	421	snd_card_free(card);
f9933487 OZ	422	return 0;
	423	}
	424
	425	#ifdef CONFIG_PM
	426	static int snd_cmi8328_suspend(struct device *pdev, unsigned int n,
	427	pm_message_t state)
	428	{
	429	struct snd_card *card = dev_get_drvdata(pdev);
	430	struct snd_cmi8328 *cmi;
	431
	432	if (!card) /* ignore absent devices */
	433	return 0;
	434	cmi = card->private_data;
	435	snd_cmi8328_cfg_save(cmi->port, cmi->cfg);
	436	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
	437	snd_pcm_suspend_all(cmi->wss->pcm);
	438	cmi->wss->suspend(cmi->wss);
	439
	440	return 0;
	441	}
	442
	443	static int snd_cmi8328_resume(struct device *pdev, unsigned int n)
	444	{
	445	struct snd_card *card = dev_get_drvdata(pdev);
	446	struct snd_cmi8328 *cmi;
	447
	448	if (!card) /* ignore absent devices */
	449	return 0;
	450	cmi = card->private_data;
	451	snd_cmi8328_cfg_restore(cmi->port, cmi->cfg);
	452	outb(cmi->wss_cfg, cmi->port);
	453	cmi->wss->resume(cmi->wss);
	454	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	455
	456	return 0;
	457	}
	458	#endif
	459
	460	static struct isa_driver snd_cmi8328_driver = {
	461	.probe = snd_cmi8328_probe,
1bff292e	462	.remove = snd_cmi8328_remove,
f9933487 OZ	463	#ifdef CONFIG_PM
	464	.suspend = snd_cmi8328_suspend,
	465	.resume = snd_cmi8328_resume,
	466	#endif
	467	.driver = {
	468	.name = "cmi8328"
	469	},
	470	};
	471
042c576c	472	module_isa_driver(snd_cmi8328_driver, CMI8328_MAX);