pata_hpt3x2n.c (5a84d159061d914c8dd4aa372ac6e9529c2be453) pata_hpt3x2n.c (a0fcdc0259e98d1c16d96baea9ba8a8603e41791)
1/*
2 * Libata driver for the highpoint 372N and 302N UDMA66 ATA controllers.
3 *
4 * This driver is heavily based upon:
5 *
6 * linux/drivers/ide/pci/hpt366.c Version 0.36 April 25, 2003
7 *
8 * Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>

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20#include <linux/pci.h>
21#include <linux/init.h>
22#include <linux/blkdev.h>
23#include <linux/delay.h>
24#include <scsi/scsi_host.h>
25#include <linux/libata.h>
26
27#define DRV_NAME "pata_hpt3x2n"
1/*
2 * Libata driver for the highpoint 372N and 302N UDMA66 ATA controllers.
3 *
4 * This driver is heavily based upon:
5 *
6 * linux/drivers/ide/pci/hpt366.c Version 0.36 April 25, 2003
7 *
8 * Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>

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20#include <linux/pci.h>
21#include <linux/init.h>
22#include <linux/blkdev.h>
23#include <linux/delay.h>
24#include <scsi/scsi_host.h>
25#include <linux/libata.h>
26
27#define DRV_NAME "pata_hpt3x2n"
28#define DRV_VERSION "0.3.2"
28#define DRV_VERSION "0.3.3"
29
30enum {
31 HPT_PCI_FAST = (1 << 31),
32 PCI66 = (1 << 1),
33 USE_DPLL = (1 << 0)
34};
35
36struct hpt_clock {

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110 return clocks->timing;
111 clocks++;
112 }
113 BUG();
114 return 0xffffffffU; /* silence compiler warning */
115}
116
117/**
29
30enum {
31 HPT_PCI_FAST = (1 << 31),
32 PCI66 = (1 << 1),
33 USE_DPLL = (1 << 0)
34};
35
36struct hpt_clock {

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110 return clocks->timing;
111 clocks++;
112 }
113 BUG();
114 return 0xffffffffU; /* silence compiler warning */
115}
116
117/**
118 * hpt3x2n_pre_reset - reset the hpt3x2n bus
119 * @ap: ATA port to reset
118 * hpt3x2n_cable_detect - Detect the cable type
119 * @ap: ATA port to detect on
120 *
120 *
121 * Perform the initial reset handling for the 3x2n series controllers.
122 * Reset the hardware and state machine, obtain the cable type.
121 * Return the cable type attached to this port
123 */
124
122 */
123
125static int hpt3xn_pre_reset(struct ata_port *ap)
124static int hpt3x2n_cable_detect(struct ata_port *ap)
126{
127 u8 scr2, ata66;
128 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
129
130 pci_read_config_byte(pdev, 0x5B, &scr2);
131 pci_write_config_byte(pdev, 0x5B, scr2 & ~0x01);
132 /* Cable register now active */
133 pci_read_config_byte(pdev, 0x5A, &ata66);
134 /* Restore state */
135 pci_write_config_byte(pdev, 0x5B, scr2);
136
137 if (ata66 & (1 << ap->port_no))
125{
126 u8 scr2, ata66;
127 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
128
129 pci_read_config_byte(pdev, 0x5B, &scr2);
130 pci_write_config_byte(pdev, 0x5B, scr2 & ~0x01);
131 /* Cable register now active */
132 pci_read_config_byte(pdev, 0x5A, &ata66);
133 /* Restore state */
134 pci_write_config_byte(pdev, 0x5B, scr2);
135
136 if (ata66 & (1 << ap->port_no))
138 ap->cbl = ATA_CBL_PATA40;
137 return ATA_CBL_PATA40;
139 else
138 else
140 ap->cbl = ATA_CBL_PATA80;
139 return ATA_CBL_PATA80;
140}
141
141
142/**
143 * hpt3x2n_pre_reset - reset the hpt3x2n bus
144 * @ap: ATA port to reset
145 *
146 * Perform the initial reset handling for the 3x2n series controllers.
147 * Reset the hardware and state machine,
148 */
149
150static int hpt3xn_pre_reset(struct ata_port *ap)
151{
152 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
142 /* Reset the state machine */
143 pci_write_config_byte(pdev, 0x50, 0x37);
144 pci_write_config_byte(pdev, 0x54, 0x37);
145 udelay(100);
153 /* Reset the state machine */
154 pci_write_config_byte(pdev, 0x50, 0x37);
155 pci_write_config_byte(pdev, 0x54, 0x37);
156 udelay(100);
146
147 return ata_std_prereset(ap);
148}
149
150/**
151 * hpt3x2n_error_handler - probe the hpt3x2n bus
152 * @ap: ATA port to reset
153 *
154 * Perform the probe reset handling for the 3x2N

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359 .check_status = ata_check_status,
360 .exec_command = ata_exec_command,
361 .dev_select = ata_std_dev_select,
362
363 .freeze = ata_bmdma_freeze,
364 .thaw = ata_bmdma_thaw,
365 .error_handler = hpt3x2n_error_handler,
366 .post_internal_cmd = ata_bmdma_post_internal_cmd,
157 return ata_std_prereset(ap);
158}
159
160/**
161 * hpt3x2n_error_handler - probe the hpt3x2n bus
162 * @ap: ATA port to reset
163 *
164 * Perform the probe reset handling for the 3x2N

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369 .check_status = ata_check_status,
370 .exec_command = ata_exec_command,
371 .dev_select = ata_std_dev_select,
372
373 .freeze = ata_bmdma_freeze,
374 .thaw = ata_bmdma_thaw,
375 .error_handler = hpt3x2n_error_handler,
376 .post_internal_cmd = ata_bmdma_post_internal_cmd,
377 .cable_detect = hpt3x2n_cable_detect,
367
368 .bmdma_setup = ata_bmdma_setup,
369 .bmdma_start = ata_bmdma_start,
370 .bmdma_stop = hpt3x2n_bmdma_stop,
371 .bmdma_status = ata_bmdma_status,
372
373 .qc_prep = ata_qc_prep,
374 .qc_issue = hpt3x2n_qc_issue_prot,

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379 .bmdma_setup = ata_bmdma_setup,
380 .bmdma_start = ata_bmdma_start,
381 .bmdma_stop = hpt3x2n_bmdma_stop,
382 .bmdma_status = ata_bmdma_status,
383
384 .qc_prep = ata_qc_prep,
385 .qc_issue = hpt3x2n_qc_issue_prot,

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