[mirror_ubuntu-zesty-kernel.git] / drivers / ide / pci / jmicron.c


/*
 * Copyright (C) 2006		Red Hat <alan@redhat.com>
 *
 *  May be copied or modified under the terms of the GNU General Public License
 */

#include <linux/types.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>

#include <asm/io.h>

typedef enum {
	PORT_PATA0 = 0,
	PORT_PATA1 = 1,
	PORT_SATA = 2,
} port_type;

/**
 *	ata66_jmicron		-	Cable check
 *	@hwif: IDE port
 *
 *	Returns the cable type.
 */

static u8 __devinit ata66_jmicron(ide_hwif_t *hwif)
{
	struct pci_dev *pdev = hwif->pci_dev;

	u32 control;
	u32 control5;

	int port = hwif->channel;
	port_type port_map[2];

	pci_read_config_dword(pdev, 0x40, &control);

	/* There are two basic mappings. One has the two SATA ports merged
	   as master/slave and the secondary as PATA, the other has only the
	   SATA port mapped */
	if (control & (1 << 23)) {
		port_map[0] = PORT_SATA;
		port_map[1] = PORT_PATA0;
	} else {
		port_map[0] = PORT_SATA;
		port_map[1] = PORT_SATA;
	}

	/* The 365/366 may have this bit set to map the second PATA port
	   as the internal primary channel */
	pci_read_config_dword(pdev, 0x80, &control5);
	if (control5 & (1<<24))
		port_map[0] = PORT_PATA1;

	/* The two ports may then be logically swapped by the firmware */
	if (control & (1 << 22))
		port = port ^ 1;

	/*
	 *	Now we know which physical port we are talking about we can
	 *	actually do our cable checking etc. Thankfully we don't need
	 *	to do the plumbing for other cases.
	 */
	switch (port_map[port])
	{
	case PORT_PATA0:
		if (control & (1 << 3))	/* 40/80 pin primary */
			return ATA_CBL_PATA40;
		return ATA_CBL_PATA80;
	case PORT_PATA1:
		if (control5 & (1 << 19))	/* 40/80 pin secondary */
			return ATA_CBL_PATA40;
		return ATA_CBL_PATA80;
	case PORT_SATA:
		break;
	}
	/* Avoid bogus "control reaches end of non-void function" */
	return ATA_CBL_PATA80;
}

static void jmicron_tuneproc(ide_drive_t *drive, u8 pio)
{
	pio = ide_get_best_pio_mode(drive, pio, 5);
	ide_config_drive_speed(drive, XFER_PIO_0 + pio);
}

/**
 *	jmicron_tune_chipset	-	set controller timings
 *	@drive: Drive to set up
 *	@xferspeed: speed we want to achieve
 *
 *	As the JMicron snoops for timings all we actually need to do is
 *	make sure we don't set an invalid mode. We do need to honour
 *	the cable detect here.
 */

static int jmicron_tune_chipset (ide_drive_t *drive, byte xferspeed)
{
	u8 speed = ide_rate_filter(drive, xferspeed);

	return ide_config_drive_speed(drive, speed);
}

/**
 *	jmicron_configure_drive_for_dma	-	set up for DMA transfers
 *	@drive: drive we are going to set up
 *
 *	As the JMicron snoops for timings all we actually need to do is
 *	make sure we don't set an invalid mode.
 */

static int jmicron_config_drive_for_dma (ide_drive_t *drive)
{
	if (ide_tune_dma(drive))
		return 0;

	jmicron_tuneproc(drive, 255);

	return -1;
}

/**
 *	init_hwif_jmicron	-	set up hwif structs
 *	@hwif: interface to set up
 *
 *	Minimal set up is required for the Jmicron hardware.
 */

static void __devinit init_hwif_jmicron(ide_hwif_t *hwif)
{
	hwif->speedproc = &jmicron_tune_chipset;
	hwif->tuneproc	= &jmicron_tuneproc;

	hwif->drives[0].autotune = 1;
	hwif->drives[1].autotune = 1;

	if (!hwif->dma_base)
		goto fallback;

	hwif->atapi_dma = 1;
	hwif->ultra_mask = 0x7f;
	hwif->mwdma_mask = 0x07;

	hwif->ide_dma_check = &jmicron_config_drive_for_dma;

	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
		hwif->cbl = ata66_jmicron(hwif);

	hwif->autodma = 1;
	hwif->drives[0].autodma = hwif->autodma;
	hwif->drives[1].autodma = hwif->autodma;
	return;
fallback:
	hwif->autodma = 0;
	return;
}

#define DECLARE_JMB_DEV(name_str)			\
	{						\
		.name		= name_str,		\
		.init_hwif	= init_hwif_jmicron,	\
		.autodma	= AUTODMA,		\
		.bootable	= ON_BOARD,		\
		.enablebits	= { {0x40, 1, 1}, {0x40, 0x10, 0x10} }, \
		.pio_mask	= ATA_PIO5,		\
	}

static ide_pci_device_t jmicron_chipsets[] __devinitdata = {
	/* 0 */ DECLARE_JMB_DEV("JMB361"),
	/* 1 */ DECLARE_JMB_DEV("JMB363"),
	/* 2 */ DECLARE_JMB_DEV("JMB365"),
	/* 3 */ DECLARE_JMB_DEV("JMB366"),
	/* 4 */ DECLARE_JMB_DEV("JMB368"),
};

/**
 *	jmicron_init_one	-	pci layer discovery entry
 *	@dev: PCI device
 *	@id: ident table entry
 *
 *	Called by the PCI code when it finds a Jmicron controller.
 *	We then use the IDE PCI generic helper to do most of the work.
 */

static int __devinit jmicron_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
	ide_setup_pci_device(dev, &jmicron_chipsets[id->driver_data]);
	return 0;
}

/* If libata is configured, jmicron PCI quirk will configure it such
 * that the SATA ports are in AHCI function while the PATA ports are
 * in a separate IDE function.  In such cases, match device class and
 * attach only to IDE.  If libata isn't configured, keep the old
 * behavior for backward compatibility.
 */
#if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
#define JMB_CLASS	PCI_CLASS_STORAGE_IDE << 8
#define JMB_CLASS_MASK	0xffff00
#else
#define JMB_CLASS	0
#define JMB_CLASS_MASK	0
#endif

static struct pci_device_id jmicron_pci_tbl[] = {
	{ PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361,
	  PCI_ANY_ID, PCI_ANY_ID, JMB_CLASS, JMB_CLASS_MASK, 0},
	{ PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363,
	  PCI_ANY_ID, PCI_ANY_ID, JMB_CLASS, JMB_CLASS_MASK, 1},
	{ PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365,
	  PCI_ANY_ID, PCI_ANY_ID, JMB_CLASS, JMB_CLASS_MASK, 2},
	{ PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366,
	  PCI_ANY_ID, PCI_ANY_ID, JMB_CLASS, JMB_CLASS_MASK, 3},
	{ PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368,
	  PCI_ANY_ID, PCI_ANY_ID, JMB_CLASS, JMB_CLASS_MASK, 4},
	{ 0, },
};

MODULE_DEVICE_TABLE(pci, jmicron_pci_tbl);

static struct pci_driver driver = {
	.name		= "JMicron IDE",
	.id_table	= jmicron_pci_tbl,
	.probe		= jmicron_init_one,
};

static int __init jmicron_ide_init(void)
{
	return ide_pci_register_driver(&driver);
}

module_init(jmicron_ide_init);

MODULE_AUTHOR("Alan Cox");
MODULE_DESCRIPTION("PCI driver module for the JMicron in legacy modes");
MODULE_LICENSE("GPL");
Commit	Line	Data
bbb3bbdb AC	1
	2	/*
	3	* Copyright (C) 2006 Red Hat <alan@redhat.com>
	4	*
	5	* May be copied or modified under the terms of the GNU General Public License
	6	*/
	7
bbb3bbdb AC	8	#include <linux/types.h>
	9	#include <linux/module.h>
	10	#include <linux/pci.h>
	11	#include <linux/delay.h>
	12	#include <linux/hdreg.h>
	13	#include <linux/ide.h>
	14	#include <linux/init.h>
	15
	16	#include <asm/io.h>
	17
	18	typedef enum {
	19	PORT_PATA0 = 0,
	20	PORT_PATA1 = 1,
	21	PORT_SATA = 2,
	22	} port_type;
	23
bbb3bbdb AC	24	/**
	25	* ata66_jmicron - Cable check
	26	* @hwif: IDE port
	27	*
49521f97	28	* Returns the cable type.
bbb3bbdb AC	29	*/
bbb3bbdb AC	30
49521f97	31	static u8 __devinit ata66_jmicron(ide_hwif_t *hwif)
bbb3bbdb AC	32	{
	33	struct pci_dev *pdev = hwif->pci_dev;
	34
	35	u32 control;
	36	u32 control5;
	37
	38	int port = hwif->channel;
	39	port_type port_map[2];
	40
	41	pci_read_config_dword(pdev, 0x40, &control);
	42
	43	/* There are two basic mappings. One has the two SATA ports merged
	44	as master/slave and the secondary as PATA, the other has only the
	45	SATA port mapped */
	46	if (control & (1 << 23)) {
	47	port_map[0] = PORT_SATA;
	48	port_map[1] = PORT_PATA0;
	49	} else {
	50	port_map[0] = PORT_SATA;
	51	port_map[1] = PORT_SATA;
	52	}
	53
	54	/* The 365/366 may have this bit set to map the second PATA port
	55	as the internal primary channel */
	56	pci_read_config_dword(pdev, 0x80, &control5);
	57	if (control5 & (1<<24))
	58	port_map[0] = PORT_PATA1;
	59
	60	/* The two ports may then be logically swapped by the firmware */
	61	if (control & (1 << 22))
	62	port = port ^ 1;
	63
	64	/*
	65	* Now we know which physical port we are talking about we can
	66	* actually do our cable checking etc. Thankfully we don't need
	67	* to do the plumbing for other cases.
	68	*/
	69	switch (port_map[port])
	70	{
	71	case PORT_PATA0:
	72	if (control & (1 << 3)) /* 40/80 pin primary */
49521f97 BZ	73	return ATA_CBL_PATA40;
49521f97 BZ	74	return ATA_CBL_PATA80;
bbb3bbdb AC	75	case PORT_PATA1:
bbb3bbdb AC	76	if (control5 & (1 << 19)) /* 40/80 pin secondary */
49521f97 BZ	77	return ATA_CBL_PATA40;
49521f97 BZ	78	return ATA_CBL_PATA80;
bbb3bbdb	79	case PORT_SATA:
a51545ab	80	break;
bbb3bbdb	81	}
49521f97 BZ	82	/* Avoid bogus "control reaches end of non-void function" */
49521f97 BZ	83	return ATA_CBL_PATA80;
bbb3bbdb AC	84	}
bbb3bbdb AC	85
8b6b33be	86	static void jmicron_tuneproc(ide_drive_t *drive, u8 pio)
bbb3bbdb	87	{
8b6b33be BZ	88	pio = ide_get_best_pio_mode(drive, pio, 5);
8b6b33be BZ	89	ide_config_drive_speed(drive, XFER_PIO_0 + pio);
bbb3bbdb AC	90	}
	91
	92	/**
	93	* jmicron_tune_chipset - set controller timings
	94	* @drive: Drive to set up
	95	* @xferspeed: speed we want to achieve
	96	*
	97	* As the JMicron snoops for timings all we actually need to do is
	98	* make sure we don't set an invalid mode. We do need to honour
	99	* the cable detect here.
	100	*/
	101
	102	static int jmicron_tune_chipset (ide_drive_t *drive, byte xferspeed)
	103	{
2d5eaa6d	104	u8 speed = ide_rate_filter(drive, xferspeed);
bbb3bbdb AC	105
	106	return ide_config_drive_speed(drive, speed);
	107	}
	108
bbb3bbdb AC	109	/**
	110	* jmicron_configure_drive_for_dma - set up for DMA transfers
	111	* @drive: drive we are going to set up
	112	*
	113	* As the JMicron snoops for timings all we actually need to do is
	114	* make sure we don't set an invalid mode.
	115	*/
	116
	117	static int jmicron_config_drive_for_dma (ide_drive_t *drive)
	118	{
29e744d0	119	if (ide_tune_dma(drive))
3608b5d7	120	return 0;
bbb3bbdb	121
8b6b33be	122	jmicron_tuneproc(drive, 255);
3608b5d7 BZ	123
3608b5d7 BZ	124	return -1;
bbb3bbdb AC	125	}
	126
	127	/**
	128	* init_hwif_jmicron - set up hwif structs
	129	* @hwif: interface to set up
	130	*
	131	* Minimal set up is required for the Jmicron hardware.
	132	*/
	133
	134	static void __devinit init_hwif_jmicron(ide_hwif_t *hwif)
	135	{
	136	hwif->speedproc = &jmicron_tune_chipset;
	137	hwif->tuneproc = &jmicron_tuneproc;
	138
	139	hwif->drives[0].autotune = 1;
	140	hwif->drives[1].autotune = 1;
	141
	142	if (!hwif->dma_base)
	143	goto fallback;
	144
	145	hwif->atapi_dma = 1;
	146	hwif->ultra_mask = 0x7f;
	147	hwif->mwdma_mask = 0x07;
	148
	149	hwif->ide_dma_check = &jmicron_config_drive_for_dma;
49521f97 BZ	150
	151	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
	152	hwif->cbl = ata66_jmicron(hwif);
bbb3bbdb AC	153
	154	hwif->autodma = 1;
	155	hwif->drives[0].autodma = hwif->autodma;
	156	hwif->drives[1].autodma = hwif->autodma;
	157	return;
	158	fallback:
	159	hwif->autodma = 0;
	160	return;
	161	}
	162
	163	#define DECLARE_JMB_DEV(name_str) \
	164	{ \
	165	.name = name_str, \
	166	.init_hwif = init_hwif_jmicron, \
bbb3bbdb AC	167	.autodma = AUTODMA, \
	168	.bootable = ON_BOARD, \
	169	.enablebits = { {0x40, 1, 1}, {0x40, 0x10, 0x10} }, \
4099d143	170	.pio_mask = ATA_PIO5, \
bbb3bbdb AC	171	}
	172
	173	static ide_pci_device_t jmicron_chipsets[] __devinitdata = {
	174	/* 0 */ DECLARE_JMB_DEV("JMB361"),
	175	/* 1 */ DECLARE_JMB_DEV("JMB363"),
	176	/* 2 */ DECLARE_JMB_DEV("JMB365"),
	177	/* 3 */ DECLARE_JMB_DEV("JMB366"),
	178	/* 4 */ DECLARE_JMB_DEV("JMB368"),
	179	};
	180
	181	/**
	182	* jmicron_init_one - pci layer discovery entry
	183	* @dev: PCI device
	184	* @id: ident table entry
	185	*
	186	* Called by the PCI code when it finds a Jmicron controller.
	187	* We then use the IDE PCI generic helper to do most of the work.
	188	*/
	189
	190	static int __devinit jmicron_init_one(struct pci_dev dev, const struct pci_device_id id)
	191	{
	192	ide_setup_pci_device(dev, &jmicron_chipsets[id->driver_data]);
	193	return 0;
	194	}
	195
ebbc2031 TH	196	/* If libata is configured, jmicron PCI quirk will configure it such
	197	* that the SATA ports are in AHCI function while the PATA ports are
	198	* in a separate IDE function. In such cases, match device class and
	199	* attach only to IDE. If libata isn't configured, keep the old
	200	* behavior for backward compatibility.
	201	*/
	202	#if defined(CONFIG_ATA) \|\| defined(CONFIG_ATA_MODULE)
	203	#define JMB_CLASS PCI_CLASS_STORAGE_IDE << 8
	204	#define JMB_CLASS_MASK 0xffff00
	205	#else
	206	#define JMB_CLASS 0
	207	#define JMB_CLASS_MASK 0
	208	#endif
	209
bbb3bbdb	210	static struct pci_device_id jmicron_pci_tbl[] = {
ebbc2031 TH	211	{ PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361,
	212	PCI_ANY_ID, PCI_ANY_ID, JMB_CLASS, JMB_CLASS_MASK, 0},
	213	{ PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363,
	214	PCI_ANY_ID, PCI_ANY_ID, JMB_CLASS, JMB_CLASS_MASK, 1},
	215	{ PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365,
	216	PCI_ANY_ID, PCI_ANY_ID, JMB_CLASS, JMB_CLASS_MASK, 2},
	217	{ PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366,
	218	PCI_ANY_ID, PCI_ANY_ID, JMB_CLASS, JMB_CLASS_MASK, 3},
	219	{ PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368,
	220	PCI_ANY_ID, PCI_ANY_ID, JMB_CLASS, JMB_CLASS_MASK, 4},
bbb3bbdb AC	221	{ 0, },
	222	};
	223
	224	MODULE_DEVICE_TABLE(pci, jmicron_pci_tbl);
	225
	226	static struct pci_driver driver = {
	227	.name = "JMicron IDE",
	228	.id_table = jmicron_pci_tbl,
	229	.probe = jmicron_init_one,
	230	};
	231
	232	static int __init jmicron_ide_init(void)
	233	{
	234	return ide_pci_register_driver(&driver);
	235	}
	236
	237	module_init(jmicron_ide_init);
	238
	239	MODULE_AUTHOR("Alan Cox");
	240	MODULE_DESCRIPTION("PCI driver module for the JMicron in legacy modes");
	241	MODULE_LICENSE("GPL");