drivers/mtd/nand/raw/sh_flctl.c


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1// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Driver for PowerMac AWACS
 * Copyright (c) 2001 by Takashi Iwai <tiwai@suse.de>
 *   based on dmasound.c.
 */

#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/initval.h>
#include "pmac.h"
#include "awacs.h"
#include "burgundy.h"

#define CHIP_NAME "PMac"

MODULE_DESCRIPTION("PowerMac");
MODULE_SUPPORTED_DEVICE("{{Apple,PowerMac}}");
MODULE_LICENSE("GPL");

static int index = SNDRV_DEFAULT_IDX1;		/* Index 0-MAX */
static char *id = SNDRV_DEFAULT_STR1;		/* ID for this card */
static bool enable_beep = 1;

module_param(index, int, 0444);
MODULE_PARM_DESC(index, "Index value for " CHIP_NAME " soundchip.");
module_param(id, charp, 0444);
MODULE_PARM_DESC(id, "ID string for " CHIP_NAME " soundchip.");
module_param(enable_beep, bool, 0444);
MODULE_PARM_DESC(enable_beep, "Enable beep using PCM.");

static struct platform_device *device;


/*
 */

static int snd_pmac_probe(struct platform_device *devptr)
{
	struct snd_card *card;
	struct snd_pmac *chip;
	char *name_ext;
	int err;

	err = snd_card_new(&devptr->dev, index, id, THIS_MODULE, 0, &card);
	if (err < 0)
		return err;

	if ((err = snd_pmac_new(card, &chip)) < 0)
		goto __error;
	card->private_data = chip;

	switch (chip->model) {
	case PMAC_BURGUNDY:
		strcpy(card->driver, "PMac Burgundy");
		strcpy(card->shortname, "PowerMac Burgundy");
		sprintf(card->longname, "%s (Dev %d) Sub-frame %d",
			card->shortname, chip->device_id, chip->subframe);
		if ((err = snd_pmac_burgundy_init(chip)) < 0)
			goto __error;
		break;
	case PMAC_DACA:
		strcpy(card->driver, "PMac DACA");
		strcpy(card->shortname, "PowerMac DACA");
		sprintf(card->longname, "%s (Dev %d) Sub-frame %d",
			card->shortname, chip->device_id, chip->subframe);
		if ((err = snd_pmac_daca_init(chip)) < 0)
			goto __error;
		break;
	case PMAC_TUMBLER:
	case PMAC_SNAPPER:
		name_ext = chip->model == PMAC_TUMBLER ? "Tumbler" : "Snapper";
		sprintf(card->driver, "PMac %s", name_ext);
		sprintf(card->shortname, "PowerMac %s", name_ext);
		sprintf(card->longname, "%s (Dev %d) Sub-frame %d",
			card->shortname, chip->device_id, chip->subframe);
		if ( snd_pmac_tumbler_init(chip) < 0 || snd_pmac_tumbler_post_init() < 0)
			goto __error;
		break;
	case PMAC_AWACS:
	case PMAC_SCREAMER:
		name_ext = chip->model == PMAC_SCREAMER ? "Screamer" : "AWACS";
		sprintf(card->driver, "PMac %s", name_ext);
		sprintf(card->shortname, "PowerMac %s", name_ext);
		if (chip->is_pbook_3400)
			name_ext = " [PB3400]";
		else if (chip->is_pbook_G3)
			name_ext = " [PBG3]";
		else
			name_ext = "";
		sprintf(card->longname, "%s%s Rev %d",
			card->shortname, name_ext, chip->revision);
		if ((err = snd_pmac_awacs_init(chip)) < 0)
			goto __error;
		break;
	default:
		snd_printk(KERN_ERR "unsupported hardware %d\n", chip->model);
		err = -EINVAL;
		goto __error;
	}

	if ((err = snd_pmac_pcm_new(chip)) < 0)
		goto __error;

	chip->initialized = 1;
	if (enable_beep)
		snd_pmac_attach_beep(chip);

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

	platform_set_drvdata(devptr, card);
	return 0;

__error:
	snd_card_free(card);
	return err;
}


static int snd_pmac_remove(struct platform_device *devptr)
{
	snd_card_free(platform_get_drvdata(devptr));
	return 0;
}

#ifdef CONFIG_PM_SLEEP
static int snd_pmac_driver_suspend(struct device *dev)
{
	struct snd_card *card = dev_get_drvdata(dev);
	snd_pmac_suspend(card->private_data);
	return 0;
}

static int snd_pmac_driver_resume(struct device *dev)
{
	struct snd_card *card = dev_get_drvdata(dev);
	snd_pmac_resume(card->private_data);
	return 0;
}

static SIMPLE_DEV_PM_OPS(snd_pmac_pm, snd_pmac_driver_suspend, snd_pmac_driver_resume);
#define SND_PMAC_PM_OPS	&snd_pmac_pm
#else
#define SND_PMAC_PM_OPS	NULL
#endif

#define SND_PMAC_DRIVER		"snd_powermac"

static struct platform_driver snd_pmac_driver = {
	.probe		= snd_pmac_probe,
	.remove		= snd_pmac_remove,
	.driver		= {
		.name	= SND_PMAC_DRIVER,
		.pm	= SND_PMAC_PM_OPS,
	},
};

static int __init alsa_card_pmac_init(void)
{
	int err;

	if ((err = platform_driver_register(&snd_pmac_driver)) < 0)
		return err;
	device = platform_device_register_simple(SND_PMAC_DRIVER, -1, NULL, 0);
	return 0;

}

static void __exit alsa_card_pmac_exit(void)
{
	if (!IS_ERR(device))
		platform_device_unregister(device);
	platform_driver_unregister(&snd_pmac_driver);
}

module_init(alsa_card_pmac_init)
module_exit(alsa_card_pmac_exit)
// SPDX-License-Identifier: GPL-2.0
/*
 * SuperH FLCTL nand controller
 *
 * Copyright (c) 2008 Renesas Solutions Corp.
 * Copyright (c) 2008 Atom Create Engineering Co., Ltd.
 *
 * Based on fsl_elbc_nand.c, Copyright (c) 2006-2007 Freescale Semiconductor
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/sh_dma.h>
#include <linux/slab.h>
#include <linux/string.h>

#include <linux/mtd/mtd.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/sh_flctl.h>

static int flctl_4secc_ooblayout_sp_ecc(struct mtd_info *mtd, int section,
					struct mtd_oob_region *oobregion)
{
	struct nand_chip *chip = mtd_to_nand(mtd);

	if (section)
		return -ERANGE;

	oobregion->offset = 0;
	oobregion->length = chip->ecc.bytes;

	return 0;
}

static int flctl_4secc_ooblayout_sp_free(struct mtd_info *mtd, int section,
					 struct mtd_oob_region *oobregion)
{
	if (section)
		return -ERANGE;

	oobregion->offset = 12;
	oobregion->length = 4;

	return 0;
}

static const struct mtd_ooblayout_ops flctl_4secc_oob_smallpage_ops = {
	.ecc = flctl_4secc_ooblayout_sp_ecc,
	.free = flctl_4secc_ooblayout_sp_free,
};

static int flctl_4secc_ooblayout_lp_ecc(struct mtd_info *mtd, int section,
					struct mtd_oob_region *oobregion)
{
	struct nand_chip *chip = mtd_to_nand(mtd);

	if (section >= chip->ecc.steps)
		return -ERANGE;

	oobregion->offset = (section * 16) + 6;
	oobregion->length = chip->ecc.bytes;

	return 0;
}

static int flctl_4secc_ooblayout_lp_free(struct mtd_info *mtd, int section,
					 struct mtd_oob_region *oobregion)
{
	struct nand_chip *chip = mtd_to_nand(mtd);

	if (section >= chip->ecc.steps)
		return -ERANGE;

	oobregion->offset = section * 16;
	oobregion->length = 6;

	if (!section) {
		oobregion->offset += 2;
		oobregion->length -= 2;
	}

	return 0;
}

static const struct mtd_ooblayout_ops flctl_4secc_oob_largepage_ops = {
	.ecc = flctl_4secc_ooblayout_lp_ecc,
	.free = flctl_4secc_ooblayout_lp_free,
};

static uint8_t scan_ff_pattern[] = { 0xff, 0xff };

static struct