/*
 *  The driver for the Yamaha's DS1/DS1E cards
 *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <sound/driver.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/time.h>
#include <sound/core.h>
#include <sound/ymfpci.h>
#include <sound/mpu401.h>
#include <sound/opl3.h>
#define SNDRV_GET_ID
#include <sound/initval.h>

MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("Yamaha DS-XG PCI");
MODULE_LICENSE("GPL");
MODULE_CLASSES("{sound}");
MODULE_DEVICES("{{Yamaha,YMF724},"
		"{Yamaha,YMF724F},"
		"{Yamaha,YMF740},"
		"{Yamaha,YMF740C},"
		"{Yamaha,YMF744},"
		"{Yamaha,YMF754}}");

static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
static long fm_port[SNDRV_CARDS];
static long mpu_port[SNDRV_CARDS];
#ifdef SUPPORT_JOYSTICK
static long joystick_port[SNDRV_CARDS];
#endif
static int rear_switch[SNDRV_CARDS];

MODULE_PARM(index, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(index, "Index value for the Yamaha DS-XG PCI soundcard.");
MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC);
MODULE_PARM(id, "1-" __MODULE_STRING(SNDRV_CARDS) "s");
MODULE_PARM_DESC(id, "ID string for the Yamaha DS-XG PCI soundcard.");
MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC);
MODULE_PARM(enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(enable, "Enable Yamaha DS-XG soundcard.");
MODULE_PARM_SYNTAX(enable, SNDRV_ENABLE_DESC);
MODULE_PARM(mpu_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
MODULE_PARM_DESC(mpu_port, "MPU-401 Port.");
MODULE_PARM_SYNTAX(mpu_port, SNDRV_ENABLED);
MODULE_PARM(fm_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
MODULE_PARM_DESC(fm_port, "FM OPL-3 Port.");
MODULE_PARM_SYNTAX(fm_port, SNDRV_ENABLED);
#ifdef SUPPORT_JOYSTICK
MODULE_PARM(joystick_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
MODULE_PARM_DESC(joystick_port, "Joystick port address");
MODULE_PARM_SYNTAX(joystick_port, SNDRV_ENABLED);
#endif
MODULE_PARM(rear_switch, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(rear_switch, "Enable shared rear/line-in switch");
MODULE_PARM_SYNTAX(rear_switch, SNDRV_ENABLED "," SNDRV_BOOLEAN_FALSE_DESC);

static struct pci_device_id snd_ymfpci_ids[] = {
        { 0x1073, 0x0004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* YMF724 */
        { 0x1073, 0x000d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* YMF724F */
        { 0x1073, 0x000a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* YMF740 */
        { 0x1073, 0x000c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* YMF740C */
        { 0x1073, 0x0010, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* YMF744 */
        { 0x1073, 0x0012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* YMF754 */
	{ 0, }
};

MODULE_DEVICE_TABLE(pci, snd_ymfpci_ids);

static int __devinit snd_card_ymfpci_probe(struct pci_dev *pci,
					   const struct pci_device_id *pci_id)
{
	static int dev;
	snd_card_t *card;
	struct resource *fm_res = NULL;
	struct resource *mpu_res = NULL;
#ifdef SUPPORT_JOYSTICK
	struct resource *joystick_res = NULL;
#endif
	ymfpci_t *chip;
	opl3_t *opl3;
	char *str;
	int err;
	u16 legacy_ctrl, legacy_ctrl2, old_legacy_ctrl;

	if (dev >= SNDRV_CARDS)
		return -ENODEV;
	if (!enable[dev]) {
		dev++;
		return -ENOENT;
	}

	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
	if (card == NULL)
		return -ENOMEM;

	switch (pci_id->device) {
	case 0x0004: str = "YMF724"; break;
	case 0x000d: str = "YMF724F"; break;
	case 0x000a: str = "YMF740"; break;
	case 0x000c: str = "YMF740C"; break;
	case 0x0010: str = "YMF744"; break;
	case 0x0012: str = "YMF754"; break;
	default: str = "???"; break;
	}

	legacy_ctrl = 0;
	legacy_ctrl2 = 0x0800;	/* SBEN = 0, SMOD = 01, LAD = 0 */

	if (pci_id->device >= 0x0010) { /* YMF 744/754 */
		if (fm_port[dev] == 1) {
			/* auto-detect */
			fm_port[dev] = pci_resource_start(pci, 1);
		}
		if (fm_port[dev] > 0 &&
		    (fm_res = request_region(fm_port[dev], 4, "YMFPCI OPL3")) != NULL) {
			legacy_ctrl |= YMFPCI_LEGACY_FMEN;
			pci_write_config_word(pci, PCIR_DSXG_FMBASE, fm_port[dev]);
		}
		if (mpu_port[dev] == 1) {
			/* auto-detect */
			mpu_port[dev] = pci_resource_start(pci, 1) + 0x20;
		}
		if (mpu_port[dev] > 0 &&
		    (mpu_res = request_region(mpu_port[dev], 2, "YMFPCI MPU401")) != NULL) {
			legacy_ctrl |= YMFPCI_LEGACY_MEN;
			pci_write_config_word(pci, PCIR_DSXG_MPU401BASE, mpu_port[dev]);
		}
#ifdef SUPPORT_JOYSTICK
		if (joystick_port[dev] == 1) {
			/* auto-detect */
			joystick_port[dev] = pci_resource_start(pci, 2);
		}
		if (joystick_port[dev] > 0 &&
		    (joystick_res = request_region(joystick_port[dev], 1, "YMFPCI gameport")) != NULL) {
			legacy_ctrl |= YMFPCI_LEGACY_JPEN;
			pci_write_config_word(pci, PCIR_DSXG_JOYBASE, joystick_port[dev]);
		}
#endif
	} else {
		switch (fm_port[dev]) {
		case 0x388: legacy_ctrl2 |= 0; break;
		case 0x398: legacy_ctrl2 |= 1; break;
		case 0x3a0: legacy_ctrl2 |= 2; break;
		case 0x3a8: legacy_ctrl2 |= 3; break;
		default: fm_port[dev] = 0; break;
		}
		if (fm_port[dev] > 0 &&
		    (fm_res = request_region(fm_port[dev], 4, "YMFPCI OPL3")) != NULL) {
			legacy_ctrl |= YMFPCI_LEGACY_FMEN;
		} else {
			legacy_ctrl2 &= ~YMFPCI_LEGACY2_FMIO;
			fm_port[dev] = 0;
		}
		switch (mpu_port[dev]) {
		case 0x330: legacy_ctrl2 |= 0 << 4; break;
		case 0x300: legacy_ctrl2 |= 1 << 4; break;
		case 0x332: legacy_ctrl2 |= 2 << 4; break;
		case 0x334: legacy_ctrl2 |= 3 << 4; break;
		default: mpu_port[dev] = 0; break;
		}
		if (mpu_port[dev] > 0 &&
		    (mpu_res = request_region(mpu_port[dev], 2, "YMFPCI MPU401")) != NULL) {
			legacy_ctrl |= YMFPCI_LEGACY_MEN;
		} else {
			legacy_ctrl2 &= ~YMFPCI_LEGACY2_MPUIO;
			mpu_port[dev] = 0;
		}
#ifdef SUPPORT_JOYSTICK
		if (joystick_port[dev] == 1) {
			/* auto-detect */
			long p;
			for (p = 0x201; p <= 0x205; p++) {
				if (p == 0x203) continue;
				if ((joystick_res = request_region(p, 1, "YMFPCI gameport")) != NULL)
					break;
			}
			if (joystick_res)
				joystick_port[dev] = p;
		}
		switch (joystick_port[dev]) {
		case 0x201: legacy_ctrl2 |= 0 << 6; break;
		case 0x202: legacy_ctrl2 |= 1 << 6; break;
		case 0x204: legacy_ctrl2 |= 2 << 6; break;
		case 0x205: legacy_ctrl2 |= 3 << 6; break;
		default: joystick_port[dev] = 0; break;
		}
		if (! joystick_res && joystick_port[dev] > 0)
			joystick_res = request_region(joystick_port[dev], 1, "YMFPCI gameport");
		if (joystick_res) {
			legacy_ctrl |= YMFPCI_LEGACY_JPEN;
		} else {
			legacy_ctrl2 &= ~YMFPCI_LEGACY2_JSIO;
			joystick_port[dev] = 0;
		}
#endif
	}
	if (mpu_res) {
		legacy_ctrl |= YMFPCI_LEGACY_MIEN;
		legacy_ctrl2 |= YMFPCI_LEGACY2_IMOD;
	}
	pci_read_config_word(pci, PCIR_DSXG_LEGACY, &old_legacy_ctrl);
	pci_write_config_word(pci, PCIR_DSXG_LEGACY, legacy_ctrl);
	pci_write_config_word(pci, PCIR_DSXG_ELEGACY, legacy_ctrl2);
	if ((err = snd_ymfpci_create(card, pci,
				     old_legacy_ctrl,
			 	     &chip)) < 0) {
		snd_card_free(card);
		if (mpu_res) {
			release_resource(mpu_res);
			kfree_nocheck(mpu_res);
		}
		if (fm_res) {
			release_resource(fm_res);
			kfree_nocheck(fm_res);
		}
#ifdef SUPPORT_JOYSTICK
		if (joystick_res) {
			release_resource(joystick_res);
			kfree_nocheck(joystick_res);
		}
#endif
		return err;
	}
	chip->fm_res = fm_res;
	chip->mpu_res = mpu_res;
#ifdef SUPPORT_JOYSTICK
	chip->joystick_res = joystick_res;
#endif
	strcpy(card->driver, str);
	sprintf(card->shortname, "Yamaha DS-XG (%s)", str);
	sprintf(card->longname, "%s at 0x%lx, irq %i",
		card->shortname,
		chip->reg_area_phys,
		chip->irq);
	if ((err = snd_ymfpci_pcm(chip, 0, NULL)) < 0) {
		snd_card_free(card);
		return err;
	}
	if ((err = snd_ymfpci_pcm_spdif(chip, 1, NULL)) < 0) {
		snd_card_free(card);
		return err;
	}
	if ((err = snd_ymfpci_pcm_4ch(chip, 2, NULL)) < 0) {
		snd_card_free(card);
		return err;
	}
	if ((err = snd_ymfpci_pcm2(chip, 3, NULL)) < 0) {
		snd_card_free(card);
		return err;
	}
	if ((err = snd_ymfpci_mixer(chip, rear_switch[dev])) < 0) {
		snd_card_free(card);
		return err;
	}
	if ((err = snd_ymfpci_timer(chip, 0)) < 0) {
		snd_card_free(card);
		return err;
	}
	if (chip->mpu_res) {
		if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_YMFPCI,
					       mpu_port[dev], 1,
					       pci->irq, 0, &chip->rawmidi)) < 0) {
			printk(KERN_WARNING "ymfpci: cannot initialize MPU401 at 0x%lx, skipping...\n", mpu_port[dev]);
			legacy_ctrl &= ~YMFPCI_LEGACY_MIEN; /* disable MPU401 irq */
			pci_write_config_word(pci, PCIR_DSXG_LEGACY, legacy_ctrl);
		}
	}
	if (chip->fm_res) {
		if ((err = snd_opl3_create(card,
					   fm_port[dev],
					   fm_port[dev] + 2,
					   OPL3_HW_OPL3, 1, &opl3)) < 0) {
			printk(KERN_WARNING "ymfpci: cannot initialize FM OPL3 at 0x%lx, skipping...\n", fm_port[dev]);
			legacy_ctrl &= ~YMFPCI_LEGACY_FMEN;
			pci_write_config_word(pci, PCIR_DSXG_LEGACY, legacy_ctrl);
		} else if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
			snd_card_free(card);
			snd_printk("cannot create opl3 hwdep\n");
			return err;
		}
	}
#ifdef SUPPORT_JOYSTICK
	if (chip->joystick_res) {
		chip->gameport.io = joystick_port[dev];
		gameport_register_port(&chip->gameport);
	}
#endif

	if ((err = snd_card_register(card)) < 0) {
		snd_card_free(card);
		return err;
	}
	pci_set_drvdata(pci, chip);
	dev++;
	return 0;
}

#ifdef CONFIG_PM
static int snd_card_ymfpci_suspend(struct pci_dev *pci, u32 state)
{
	ymfpci_t *chip = snd_magic_cast(ymfpci_t, pci_get_drvdata(pci), return -ENXIO);
	snd_ymfpci_suspend(chip);
	return 0;
}
static int snd_card_ymfpci_resume(struct pci_dev *pci)
{
	ymfpci_t *chip = snd_magic_cast(ymfpci_t, pci_get_drvdata(pci), return -ENXIO);
	snd_ymfpci_resume(chip);
	return 0;
}
#endif

static void __devexit snd_card_ymfpci_remove(struct pci_dev *pci)
{
	ymfpci_t *chip = snd_magic_cast(ymfpci_t, pci_get_drvdata(pci), return);
	if (chip)
		snd_card_free(chip->card);
	pci_set_drvdata(pci, NULL);
}

static struct pci_driver driver = {
	.name = "Yamaha DS-XG PCI",
	.id_table = snd_ymfpci_ids,
	.probe = snd_card_ymfpci_probe,
	.remove = __devexit_p(snd_card_ymfpci_remove),
#ifdef CONFIG_PM
	.suspend = snd_card_ymfpci_suspend,
	.resume = snd_card_ymfpci_resume,
#endif	
};

static int __init alsa_card_ymfpci_init(void)
{
	int err;

	if ((err = pci_module_init(&driver)) < 0) {
#ifdef MODULE
		printk(KERN_ERR "Yamaha DS-XG PCI soundcard not found or device busy\n");
#endif
		return err;
	}
	return 0;
}

static void __exit alsa_card_ymfpci_exit(void)
{
	pci_unregister_driver(&driver);
}

module_init(alsa_card_ymfpci_init)
module_exit(alsa_card_ymfpci_exit)

#ifndef MODULE

/* format is: snd-ymfpci=enable,index,id,
			 fm_port,mpu_port */

static int __init alsa_card_ymfpci_setup(char *str)
{
	static unsigned __initdata nr_dev = 0;

	if (nr_dev >= SNDRV_CARDS)
		return 0;
	(void)(get_option(&str,&enable[nr_dev]) == 2 &&
	       get_option(&str,&index[nr_dev]) == 2 &&
	       get_id(&str,&id[nr_dev]) == 2 &&
	       get_option_long(&str,&fm_port[nr_dev]) == 2 &&
	       get_option_long(&str,&mpu_port[nr_dev]) == 2);
	nr_dev++;
	return 1;
}

__setup("snd-ymfpci=", alsa_card_ymfpci_setup);

#endif /* ifndef MODULE */