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v5.9
  1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * Copyright (C) 1997-1998	Mark Lord <mlord@pobox.com>
  4 * Copyright (C) 1998		Eddie C. Dost <ecd@skynet.be>
  5 * Copyright (C) 1999-2000	Andre Hedrick <andre@linux-ide.org>
  6 * Copyright (C) 2004		Grant Grundler <grundler at parisc-linux.org>
  7 *
  8 * Inspired by an earlier effort from David S. Miller <davem@redhat.com>
  9 */
 10
 11#include <linux/module.h>
 12#include <linux/types.h>
 13#include <linux/kernel.h>
 14#include <linux/interrupt.h>
 15#include <linux/pci.h>
 16#include <linux/delay.h>
 17#include <linux/ide.h>
 18#include <linux/init.h>
 19
 20#include <asm/io.h>
 21
 22#define DRV_NAME "ns87415"
 23
 24#ifdef CONFIG_SUPERIO
 25/* SUPERIO 87560 is a PoS chip that NatSem denies exists.
 26 * Unfortunately, it's built-in on all Astro-based PA-RISC workstations
 27 * which use the integrated NS87514 cell for CD-ROM support.
 28 * i.e we have to support for CD-ROM installs.
 29 * See drivers/parisc/superio.c for more gory details.
 30 */
 31#include <asm/superio.h>
 32
 33#define SUPERIO_IDE_MAX_RETRIES 25
 34
 35/* Because of a defect in Super I/O, all reads of the PCI DMA status 
 36 * registers, IDE status register and the IDE select register need to be 
 37 * retried
 38 */
 39static u8 superio_ide_inb (unsigned long port)
 40{
 41	u8 tmp;
 42	int retries = SUPERIO_IDE_MAX_RETRIES;
 43
 44	/* printk(" [ reading port 0x%x with retry ] ", port); */
 45
 46	do {
 47		tmp = inb(port);
 48		if (tmp == 0)
 49			udelay(50);
 50	} while (tmp == 0 && retries-- > 0);
 51
 52	return tmp;
 53}
 54
 55static u8 superio_read_status(ide_hwif_t *hwif)
 56{
 57	return superio_ide_inb(hwif->io_ports.status_addr);
 58}
 59
 60static u8 superio_dma_sff_read_status(ide_hwif_t *hwif)
 61{
 62	return superio_ide_inb(hwif->dma_base + ATA_DMA_STATUS);
 63}
 64
 65static void superio_tf_read(ide_drive_t *drive, struct ide_taskfile *tf,
 66			    u8 valid)
 67{
 68	struct ide_io_ports *io_ports = &drive->hwif->io_ports;
 69
 70	if (valid & IDE_VALID_ERROR)
 71		tf->error  = inb(io_ports->feature_addr);
 72	if (valid & IDE_VALID_NSECT)
 73		tf->nsect  = inb(io_ports->nsect_addr);
 74	if (valid & IDE_VALID_LBAL)
 75		tf->lbal   = inb(io_ports->lbal_addr);
 76	if (valid & IDE_VALID_LBAM)
 77		tf->lbam   = inb(io_ports->lbam_addr);
 78	if (valid & IDE_VALID_LBAH)
 79		tf->lbah   = inb(io_ports->lbah_addr);
 80	if (valid & IDE_VALID_DEVICE)
 81		tf->device = superio_ide_inb(io_ports->device_addr);
 82}
 83
 84static void ns87415_dev_select(ide_drive_t *drive);
 85
 86static const struct ide_tp_ops superio_tp_ops = {
 87	.exec_command		= ide_exec_command,
 88	.read_status		= superio_read_status,
 89	.read_altstatus		= ide_read_altstatus,
 90	.write_devctl		= ide_write_devctl,
 91
 92	.dev_select		= ns87415_dev_select,
 93	.tf_load		= ide_tf_load,
 94	.tf_read		= superio_tf_read,
 95
 96	.input_data		= ide_input_data,
 97	.output_data		= ide_output_data,
 98};
 99
100static void superio_init_iops(struct hwif_s *hwif)
101{
102	struct pci_dev *pdev = to_pci_dev(hwif->dev);
103	u32 dma_stat;
104	u8 port = hwif->channel, tmp;
105
106	dma_stat = (pci_resource_start(pdev, 4) & ~3) + (!port ? 2 : 0xa);
107
108	/* Clear error/interrupt, enable dma */
109	tmp = superio_ide_inb(dma_stat);
110	outb(tmp | 0x66, dma_stat);
111}
112#else
113#define superio_dma_sff_read_status ide_dma_sff_read_status
114#endif
115
116static unsigned int ns87415_count = 0, ns87415_control[MAX_HWIFS] = { 0 };
117
118/*
119 * This routine either enables/disables (according to IDE_DFLAG_PRESENT)
120 * the IRQ associated with the port,
121 * and selects either PIO or DMA handshaking for the next I/O operation.
122 */
123static void ns87415_prepare_drive (ide_drive_t *drive, unsigned int use_dma)
124{
125	ide_hwif_t *hwif = drive->hwif;
126	struct pci_dev *dev = to_pci_dev(hwif->dev);
127	unsigned int bit, other, new, *old = (unsigned int *) hwif->select_data;
128	unsigned long flags;
129
130	local_irq_save(flags);
131	new = *old;
132
133	/* Adjust IRQ enable bit */
134	bit = 1 << (8 + hwif->channel);
135
136	if (drive->dev_flags & IDE_DFLAG_PRESENT)
137		new &= ~bit;
138	else
139		new |= bit;
140
141	/* Select PIO or DMA, DMA may only be selected for one drive/channel. */
142	bit   = 1 << (20 + (drive->dn & 1) + (hwif->channel << 1));
143	other = 1 << (20 + (1 - (drive->dn & 1)) + (hwif->channel << 1));
144	new = use_dma ? ((new & ~other) | bit) : (new & ~bit);
145
146	if (new != *old) {
147		unsigned char stat;
148
149		/*
150		 * Don't change DMA engine settings while Write Buffers
151		 * are busy.
152		 */
153		(void) pci_read_config_byte(dev, 0x43, &stat);
154		while (stat & 0x03) {
155			udelay(1);
156			(void) pci_read_config_byte(dev, 0x43, &stat);
157		}
158
159		*old = new;
160		(void) pci_write_config_dword(dev, 0x40, new);
161
162		/*
163		 * And let things settle...
164		 */
165		udelay(10);
166	}
167
168	local_irq_restore(flags);
169}
170
171static void ns87415_dev_select(ide_drive_t *drive)
172{
173	ns87415_prepare_drive(drive,
174			      !!(drive->dev_flags & IDE_DFLAG_USING_DMA));
175
176	outb(drive->select | ATA_DEVICE_OBS, drive->hwif->io_ports.device_addr);
177}
178
179static void ns87415_dma_start(ide_drive_t *drive)
180{
181	ns87415_prepare_drive(drive, 1);
182	ide_dma_start(drive);
183}
184
185static int ns87415_dma_end(ide_drive_t *drive)
186{
187	ide_hwif_t *hwif = drive->hwif;
188	u8 dma_stat = 0, dma_cmd = 0;
189
190	dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
191	/* get DMA command mode */
192	dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD);
193	/* stop DMA */
194	outb(dma_cmd & ~1, hwif->dma_base + ATA_DMA_CMD);
195	/* from ERRATA: clear the INTR & ERROR bits */
196	dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD);
197	outb(dma_cmd | 6, hwif->dma_base + ATA_DMA_CMD);
198
199	ns87415_prepare_drive(drive, 0);
200
201	/* verify good DMA status */
202	return (dma_stat & 7) != 4;
203}
204
205static void init_hwif_ns87415 (ide_hwif_t *hwif)
206{
207	struct pci_dev *dev = to_pci_dev(hwif->dev);
208	unsigned int ctrl, using_inta;
209	u8 progif;
210#ifdef __sparc_v9__
211	int timeout;
212	u8 stat;
213#endif
214
215	/*
216	 * We cannot probe for IRQ: both ports share common IRQ on INTA.
217	 * Also, leave IRQ masked during drive probing, to prevent infinite
218	 * interrupts from a potentially floating INTA..
219	 *
220	 * IRQs get unmasked in dev_select() when drive is first used.
221	 */
222	(void) pci_read_config_dword(dev, 0x40, &ctrl);
223	(void) pci_read_config_byte(dev, 0x09, &progif);
224	/* is irq in "native" mode? */
225	using_inta = progif & (1 << (hwif->channel << 1));
226	if (!using_inta)
227		using_inta = ctrl & (1 << (4 + hwif->channel));
228	if (hwif->mate) {
229		hwif->select_data = hwif->mate->select_data;
230	} else {
231		hwif->select_data = (unsigned long)
232					&ns87415_control[ns87415_count++];
233		ctrl |= (1 << 8) | (1 << 9);	/* mask both IRQs */
234		if (using_inta)
235			ctrl &= ~(1 << 6);	/* unmask INTA */
236		*((unsigned int *)hwif->select_data) = ctrl;
237		(void) pci_write_config_dword(dev, 0x40, ctrl);
238
239		/*
240		 * Set prefetch size to 512 bytes for both ports,
241		 * but don't turn on/off prefetching here.
242		 */
243		pci_write_config_byte(dev, 0x55, 0xee);
244
245#ifdef __sparc_v9__
246		/*
247		 * XXX: Reset the device, if we don't it will not respond to
248		 *      dev_select() properly during first ide_probe_port().
249		 */
250		timeout = 10000;
251		outb(12, hwif->io_ports.ctl_addr);
252		udelay(10);
253		outb(8, hwif->io_ports.ctl_addr);
254		do {
255			udelay(50);
256			stat = hwif->tp_ops->read_status(hwif);
257			if (stat == 0xff)
258				break;
259		} while ((stat & ATA_BUSY) && --timeout);
260#endif
261	}
262
263	if (!using_inta)
264		hwif->irq = pci_get_legacy_ide_irq(dev, hwif->channel);
265
266	if (!hwif->dma_base)
267		return;
268
269	outb(0x60, hwif->dma_base + ATA_DMA_STATUS);
270}
271
272static const struct ide_tp_ops ns87415_tp_ops = {
273	.exec_command		= ide_exec_command,
274	.read_status		= ide_read_status,
275	.read_altstatus		= ide_read_altstatus,
276	.write_devctl		= ide_write_devctl,
277
278	.dev_select		= ns87415_dev_select,
279	.tf_load		= ide_tf_load,
280	.tf_read		= ide_tf_read,
281
282	.input_data		= ide_input_data,
283	.output_data		= ide_output_data,
284};
285
286static const struct ide_dma_ops ns87415_dma_ops = {
287	.dma_host_set		= ide_dma_host_set,
288	.dma_setup		= ide_dma_setup,
289	.dma_start		= ns87415_dma_start,
290	.dma_end		= ns87415_dma_end,
291	.dma_test_irq		= ide_dma_test_irq,
292	.dma_lost_irq		= ide_dma_lost_irq,
293	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
294	.dma_sff_read_status	= superio_dma_sff_read_status,
295};
296
297static const struct ide_port_info ns87415_chipset = {
298	.name		= DRV_NAME,
299	.init_hwif	= init_hwif_ns87415,
300	.tp_ops 	= &ns87415_tp_ops,
301	.dma_ops	= &ns87415_dma_ops,
302	.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA |
303			  IDE_HFLAG_NO_ATAPI_DMA,
304};
305
306static int ns87415_init_one(struct pci_dev *dev, const struct pci_device_id *id)
307{
308	struct ide_port_info d = ns87415_chipset;
309
310#ifdef CONFIG_SUPERIO
311	if (PCI_SLOT(dev->devfn) == 0xE) {
312		/* Built-in - assume it's under superio. */
313		d.init_iops = superio_init_iops;
314		d.tp_ops = &superio_tp_ops;
315	}
316#endif
317	return ide_pci_init_one(dev, &d, NULL);
318}
319
320static const struct pci_device_id ns87415_pci_tbl[] = {
321	{ PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87415), 0 },
322	{ 0, },
323};
324MODULE_DEVICE_TABLE(pci, ns87415_pci_tbl);
325
326static struct pci_driver ns87415_pci_driver = {
327	.name		= "NS87415_IDE",
328	.id_table	= ns87415_pci_tbl,
329	.probe		= ns87415_init_one,
330	.remove		= ide_pci_remove,
331	.suspend	= ide_pci_suspend,
332	.resume		= ide_pci_resume,
333};
334
335static int __init ns87415_ide_init(void)
336{
337	return ide_pci_register_driver(&ns87415_pci_driver);
338}
339
340static void __exit ns87415_ide_exit(void)
341{
342	pci_unregister_driver(&ns87415_pci_driver);
343}
344
345module_init(ns87415_ide_init);
346module_exit(ns87415_ide_exit);
347
348MODULE_AUTHOR("Mark Lord, Eddie Dost, Andre Hedrick");
349MODULE_DESCRIPTION("PCI driver module for NS87415 IDE");
350MODULE_LICENSE("GPL");
v5.4
  1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * Copyright (C) 1997-1998	Mark Lord <mlord@pobox.com>
  4 * Copyright (C) 1998		Eddie C. Dost <ecd@skynet.be>
  5 * Copyright (C) 1999-2000	Andre Hedrick <andre@linux-ide.org>
  6 * Copyright (C) 2004		Grant Grundler <grundler at parisc-linux.org>
  7 *
  8 * Inspired by an earlier effort from David S. Miller <davem@redhat.com>
  9 */
 10
 11#include <linux/module.h>
 12#include <linux/types.h>
 13#include <linux/kernel.h>
 14#include <linux/interrupt.h>
 15#include <linux/pci.h>
 16#include <linux/delay.h>
 17#include <linux/ide.h>
 18#include <linux/init.h>
 19
 20#include <asm/io.h>
 21
 22#define DRV_NAME "ns87415"
 23
 24#ifdef CONFIG_SUPERIO
 25/* SUPERIO 87560 is a PoS chip that NatSem denies exists.
 26 * Unfortunately, it's built-in on all Astro-based PA-RISC workstations
 27 * which use the integrated NS87514 cell for CD-ROM support.
 28 * i.e we have to support for CD-ROM installs.
 29 * See drivers/parisc/superio.c for more gory details.
 30 */
 31#include <asm/superio.h>
 32
 33#define SUPERIO_IDE_MAX_RETRIES 25
 34
 35/* Because of a defect in Super I/O, all reads of the PCI DMA status 
 36 * registers, IDE status register and the IDE select register need to be 
 37 * retried
 38 */
 39static u8 superio_ide_inb (unsigned long port)
 40{
 41	u8 tmp;
 42	int retries = SUPERIO_IDE_MAX_RETRIES;
 43
 44	/* printk(" [ reading port 0x%x with retry ] ", port); */
 45
 46	do {
 47		tmp = inb(port);
 48		if (tmp == 0)
 49			udelay(50);
 50	} while (tmp == 0 && retries-- > 0);
 51
 52	return tmp;
 53}
 54
 55static u8 superio_read_status(ide_hwif_t *hwif)
 56{
 57	return superio_ide_inb(hwif->io_ports.status_addr);
 58}
 59
 60static u8 superio_dma_sff_read_status(ide_hwif_t *hwif)
 61{
 62	return superio_ide_inb(hwif->dma_base + ATA_DMA_STATUS);
 63}
 64
 65static void superio_tf_read(ide_drive_t *drive, struct ide_taskfile *tf,
 66			    u8 valid)
 67{
 68	struct ide_io_ports *io_ports = &drive->hwif->io_ports;
 69
 70	if (valid & IDE_VALID_ERROR)
 71		tf->error  = inb(io_ports->feature_addr);
 72	if (valid & IDE_VALID_NSECT)
 73		tf->nsect  = inb(io_ports->nsect_addr);
 74	if (valid & IDE_VALID_LBAL)
 75		tf->lbal   = inb(io_ports->lbal_addr);
 76	if (valid & IDE_VALID_LBAM)
 77		tf->lbam   = inb(io_ports->lbam_addr);
 78	if (valid & IDE_VALID_LBAH)
 79		tf->lbah   = inb(io_ports->lbah_addr);
 80	if (valid & IDE_VALID_DEVICE)
 81		tf->device = superio_ide_inb(io_ports->device_addr);
 82}
 83
 84static void ns87415_dev_select(ide_drive_t *drive);
 85
 86static const struct ide_tp_ops superio_tp_ops = {
 87	.exec_command		= ide_exec_command,
 88	.read_status		= superio_read_status,
 89	.read_altstatus		= ide_read_altstatus,
 90	.write_devctl		= ide_write_devctl,
 91
 92	.dev_select		= ns87415_dev_select,
 93	.tf_load		= ide_tf_load,
 94	.tf_read		= superio_tf_read,
 95
 96	.input_data		= ide_input_data,
 97	.output_data		= ide_output_data,
 98};
 99
100static void superio_init_iops(struct hwif_s *hwif)
101{
102	struct pci_dev *pdev = to_pci_dev(hwif->dev);
103	u32 dma_stat;
104	u8 port = hwif->channel, tmp;
105
106	dma_stat = (pci_resource_start(pdev, 4) & ~3) + (!port ? 2 : 0xa);
107
108	/* Clear error/interrupt, enable dma */
109	tmp = superio_ide_inb(dma_stat);
110	outb(tmp | 0x66, dma_stat);
111}
112#else
113#define superio_dma_sff_read_status ide_dma_sff_read_status
114#endif
115
116static unsigned int ns87415_count = 0, ns87415_control[MAX_HWIFS] = { 0 };
117
118/*
119 * This routine either enables/disables (according to IDE_DFLAG_PRESENT)
120 * the IRQ associated with the port,
121 * and selects either PIO or DMA handshaking for the next I/O operation.
122 */
123static void ns87415_prepare_drive (ide_drive_t *drive, unsigned int use_dma)
124{
125	ide_hwif_t *hwif = drive->hwif;
126	struct pci_dev *dev = to_pci_dev(hwif->dev);
127	unsigned int bit, other, new, *old = (unsigned int *) hwif->select_data;
128	unsigned long flags;
129
130	local_irq_save(flags);
131	new = *old;
132
133	/* Adjust IRQ enable bit */
134	bit = 1 << (8 + hwif->channel);
135
136	if (drive->dev_flags & IDE_DFLAG_PRESENT)
137		new &= ~bit;
138	else
139		new |= bit;
140
141	/* Select PIO or DMA, DMA may only be selected for one drive/channel. */
142	bit   = 1 << (20 + (drive->dn & 1) + (hwif->channel << 1));
143	other = 1 << (20 + (1 - (drive->dn & 1)) + (hwif->channel << 1));
144	new = use_dma ? ((new & ~other) | bit) : (new & ~bit);
145
146	if (new != *old) {
147		unsigned char stat;
148
149		/*
150		 * Don't change DMA engine settings while Write Buffers
151		 * are busy.
152		 */
153		(void) pci_read_config_byte(dev, 0x43, &stat);
154		while (stat & 0x03) {
155			udelay(1);
156			(void) pci_read_config_byte(dev, 0x43, &stat);
157		}
158
159		*old = new;
160		(void) pci_write_config_dword(dev, 0x40, new);
161
162		/*
163		 * And let things settle...
164		 */
165		udelay(10);
166	}
167
168	local_irq_restore(flags);
169}
170
171static void ns87415_dev_select(ide_drive_t *drive)
172{
173	ns87415_prepare_drive(drive,
174			      !!(drive->dev_flags & IDE_DFLAG_USING_DMA));
175
176	outb(drive->select | ATA_DEVICE_OBS, drive->hwif->io_ports.device_addr);
177}
178
179static void ns87415_dma_start(ide_drive_t *drive)
180{
181	ns87415_prepare_drive(drive, 1);
182	ide_dma_start(drive);
183}
184
185static int ns87415_dma_end(ide_drive_t *drive)
186{
187	ide_hwif_t *hwif = drive->hwif;
188	u8 dma_stat = 0, dma_cmd = 0;
189
190	dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
191	/* get DMA command mode */
192	dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD);
193	/* stop DMA */
194	outb(dma_cmd & ~1, hwif->dma_base + ATA_DMA_CMD);
195	/* from ERRATA: clear the INTR & ERROR bits */
196	dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD);
197	outb(dma_cmd | 6, hwif->dma_base + ATA_DMA_CMD);
198
199	ns87415_prepare_drive(drive, 0);
200
201	/* verify good DMA status */
202	return (dma_stat & 7) != 4;
203}
204
205static void init_hwif_ns87415 (ide_hwif_t *hwif)
206{
207	struct pci_dev *dev = to_pci_dev(hwif->dev);
208	unsigned int ctrl, using_inta;
209	u8 progif;
210#ifdef __sparc_v9__
211	int timeout;
212	u8 stat;
213#endif
214
215	/*
216	 * We cannot probe for IRQ: both ports share common IRQ on INTA.
217	 * Also, leave IRQ masked during drive probing, to prevent infinite
218	 * interrupts from a potentially floating INTA..
219	 *
220	 * IRQs get unmasked in dev_select() when drive is first used.
221	 */
222	(void) pci_read_config_dword(dev, 0x40, &ctrl);
223	(void) pci_read_config_byte(dev, 0x09, &progif);
224	/* is irq in "native" mode? */
225	using_inta = progif & (1 << (hwif->channel << 1));
226	if (!using_inta)
227		using_inta = ctrl & (1 << (4 + hwif->channel));
228	if (hwif->mate) {
229		hwif->select_data = hwif->mate->select_data;
230	} else {
231		hwif->select_data = (unsigned long)
232					&ns87415_control[ns87415_count++];
233		ctrl |= (1 << 8) | (1 << 9);	/* mask both IRQs */
234		if (using_inta)
235			ctrl &= ~(1 << 6);	/* unmask INTA */
236		*((unsigned int *)hwif->select_data) = ctrl;
237		(void) pci_write_config_dword(dev, 0x40, ctrl);
238
239		/*
240		 * Set prefetch size to 512 bytes for both ports,
241		 * but don't turn on/off prefetching here.
242		 */
243		pci_write_config_byte(dev, 0x55, 0xee);
244
245#ifdef __sparc_v9__
246		/*
247		 * XXX: Reset the device, if we don't it will not respond to
248		 *      dev_select() properly during first ide_probe_port().
249		 */
250		timeout = 10000;
251		outb(12, hwif->io_ports.ctl_addr);
252		udelay(10);
253		outb(8, hwif->io_ports.ctl_addr);
254		do {
255			udelay(50);
256			stat = hwif->tp_ops->read_status(hwif);
257			if (stat == 0xff)
258				break;
259		} while ((stat & ATA_BUSY) && --timeout);
260#endif
261	}
262
263	if (!using_inta)
264		hwif->irq = pci_get_legacy_ide_irq(dev, hwif->channel);
265
266	if (!hwif->dma_base)
267		return;
268
269	outb(0x60, hwif->dma_base + ATA_DMA_STATUS);
270}
271
272static const struct ide_tp_ops ns87415_tp_ops = {
273	.exec_command		= ide_exec_command,
274	.read_status		= ide_read_status,
275	.read_altstatus		= ide_read_altstatus,
276	.write_devctl		= ide_write_devctl,
277
278	.dev_select		= ns87415_dev_select,
279	.tf_load		= ide_tf_load,
280	.tf_read		= ide_tf_read,
281
282	.input_data		= ide_input_data,
283	.output_data		= ide_output_data,
284};
285
286static const struct ide_dma_ops ns87415_dma_ops = {
287	.dma_host_set		= ide_dma_host_set,
288	.dma_setup		= ide_dma_setup,
289	.dma_start		= ns87415_dma_start,
290	.dma_end		= ns87415_dma_end,
291	.dma_test_irq		= ide_dma_test_irq,
292	.dma_lost_irq		= ide_dma_lost_irq,
293	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
294	.dma_sff_read_status	= superio_dma_sff_read_status,
295};
296
297static const struct ide_port_info ns87415_chipset = {
298	.name		= DRV_NAME,
299	.init_hwif	= init_hwif_ns87415,
300	.tp_ops 	= &ns87415_tp_ops,
301	.dma_ops	= &ns87415_dma_ops,
302	.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA |
303			  IDE_HFLAG_NO_ATAPI_DMA,
304};
305
306static int ns87415_init_one(struct pci_dev *dev, const struct pci_device_id *id)
307{
308	struct ide_port_info d = ns87415_chipset;
309
310#ifdef CONFIG_SUPERIO
311	if (PCI_SLOT(dev->devfn) == 0xE) {
312		/* Built-in - assume it's under superio. */
313		d.init_iops = superio_init_iops;
314		d.tp_ops = &superio_tp_ops;
315	}
316#endif
317	return ide_pci_init_one(dev, &d, NULL);
318}
319
320static const struct pci_device_id ns87415_pci_tbl[] = {
321	{ PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87415), 0 },
322	{ 0, },
323};
324MODULE_DEVICE_TABLE(pci, ns87415_pci_tbl);
325
326static struct pci_driver ns87415_pci_driver = {
327	.name		= "NS87415_IDE",
328	.id_table	= ns87415_pci_tbl,
329	.probe		= ns87415_init_one,
330	.remove		= ide_pci_remove,
331	.suspend	= ide_pci_suspend,
332	.resume		= ide_pci_resume,
333};
334
335static int __init ns87415_ide_init(void)
336{
337	return ide_pci_register_driver(&ns87415_pci_driver);
338}
339
340static void __exit ns87415_ide_exit(void)
341{
342	pci_unregister_driver(&ns87415_pci_driver);
343}
344
345module_init(ns87415_ide_init);
346module_exit(ns87415_ide_exit);
347
348MODULE_AUTHOR("Mark Lord, Eddie Dost, Andre Hedrick");
349MODULE_DESCRIPTION("PCI driver module for NS87415 IDE");
350MODULE_LICENSE("GPL");