pata_it821x.c (cd0d3bbcdd650651b7ccfaf55d107e3fc237d95a) pata_it821x.c (a0fcdc0259e98d1c16d96baea9ba8a8603e41791)
1/*
2 * ata-it821x.c - IT821x PATA for new ATA layer
3 * (C) 2005 Red Hat Inc
4 * Alan Cox <alan@redhat.com>
5 *
6 * based upon
7 *
8 * it821x.c

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75#include <linux/init.h>
76#include <linux/blkdev.h>
77#include <linux/delay.h>
78#include <scsi/scsi_host.h>
79#include <linux/libata.h>
80
81
82#define DRV_NAME "pata_it821x"
1/*
2 * ata-it821x.c - IT821x PATA for new ATA layer
3 * (C) 2005 Red Hat Inc
4 * Alan Cox <alan@redhat.com>
5 *
6 * based upon
7 *
8 * it821x.c

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75#include <linux/init.h>
76#include <linux/blkdev.h>
77#include <linux/delay.h>
78#include <scsi/scsi_host.h>
79#include <linux/libata.h>
80
81
82#define DRV_NAME "pata_it821x"
83#define DRV_VERSION "0.3.4"
83#define DRV_VERSION "0.3.6"
84
85struct it821x_dev
86{
87 unsigned int smart:1, /* Are we in smart raid mode */
88 timing10:1; /* Rev 0x10 */
89 u8 clock_mode; /* 0, ATA_50 or ATA_66 */
90 u8 want[2][2]; /* Mode/Pri log for master slave */
91 /* We need these for switching the clock when DMA goes on/off

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108 * flashing the alternative BIOS. This is also neccessary right now
109 * for embedded platforms that cannot run a PC BIOS but are using this
110 * device.
111 */
112
113static int it8212_noraid;
114
115/**
84
85struct it821x_dev
86{
87 unsigned int smart:1, /* Are we in smart raid mode */
88 timing10:1; /* Rev 0x10 */
89 u8 clock_mode; /* 0, ATA_50 or ATA_66 */
90 u8 want[2][2]; /* Mode/Pri log for master slave */
91 /* We need these for switching the clock when DMA goes on/off

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108 * flashing the alternative BIOS. This is also neccessary right now
109 * for embedded platforms that cannot run a PC BIOS but are using this
110 * device.
111 */
112
113static int it8212_noraid;
114
115/**
116 * it821x_pre_reset - probe
117 * @ap: ATA port
118 *
119 * Set the cable type
120 */
121
122static int it821x_pre_reset(struct ata_port *ap)
123{
124 ap->cbl = ATA_CBL_PATA80;
125 return ata_std_prereset(ap);
126}
127
128/**
129 * it821x_error_handler - probe/reset
130 * @ap: ATA port
131 *
132 * Set the cable type and trigger a probe
133 */
134
135static void it821x_error_handler(struct ata_port *ap)
136{
137 return ata_bmdma_drive_eh(ap, it821x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
138}
139
140/**
141 * it821x_program - program the PIO/MWDMA registers
142 * @ap: ATA port
143 * @adev: Device to program
144 * @timing: Timing value (66Mhz in top 8bits, 50 in the low 8)
145 *
146 * Program the PIO/MWDMA timing for this channel according to the
147 * current clock. These share the same register so are managed by
148 * the DMA start/stop sequence as with the old driver.

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661 .check_status = ata_check_status,
662 .check_atapi_dma= it821x_check_atapi_dma,
663 .exec_command = ata_exec_command,
664 .dev_select = ata_std_dev_select,
665 .dev_config = it821x_dev_config,
666
667 .freeze = ata_bmdma_freeze,
668 .thaw = ata_bmdma_thaw,
116 * it821x_program - program the PIO/MWDMA registers
117 * @ap: ATA port
118 * @adev: Device to program
119 * @timing: Timing value (66Mhz in top 8bits, 50 in the low 8)
120 *
121 * Program the PIO/MWDMA timing for this channel according to the
122 * current clock. These share the same register so are managed by
123 * the DMA start/stop sequence as with the old driver.

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636 .check_status = ata_check_status,
637 .check_atapi_dma= it821x_check_atapi_dma,
638 .exec_command = ata_exec_command,
639 .dev_select = ata_std_dev_select,
640 .dev_config = it821x_dev_config,
641
642 .freeze = ata_bmdma_freeze,
643 .thaw = ata_bmdma_thaw,
669 .error_handler = it821x_error_handler,
644 .error_handler = ata_bmdma_error_handler,
670 .post_internal_cmd = ata_bmdma_post_internal_cmd,
645 .post_internal_cmd = ata_bmdma_post_internal_cmd,
646 .cable_detect = ata_cable_unknown,
671
672 .bmdma_setup = ata_bmdma_setup,
673 .bmdma_start = ata_bmdma_start,
674 .bmdma_stop = ata_bmdma_stop,
675 .bmdma_status = ata_bmdma_status,
676
677 .qc_prep = ata_qc_prep,
678 .qc_issue = it821x_smart_qc_issue_prot,

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697 .tf_read = ata_tf_read,
698 .check_status = ata_check_status,
699 .exec_command = ata_exec_command,
700 .check_atapi_dma= it821x_check_atapi_dma,
701 .dev_select = it821x_passthru_dev_select,
702
703 .freeze = ata_bmdma_freeze,
704 .thaw = ata_bmdma_thaw,
647
648 .bmdma_setup = ata_bmdma_setup,
649 .bmdma_start = ata_bmdma_start,
650 .bmdma_stop = ata_bmdma_stop,
651 .bmdma_status = ata_bmdma_status,
652
653 .qc_prep = ata_qc_prep,
654 .qc_issue = it821x_smart_qc_issue_prot,

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673 .tf_read = ata_tf_read,
674 .check_status = ata_check_status,
675 .exec_command = ata_exec_command,
676 .check_atapi_dma= it821x_check_atapi_dma,
677 .dev_select = it821x_passthru_dev_select,
678
679 .freeze = ata_bmdma_freeze,
680 .thaw = ata_bmdma_thaw,
705 .error_handler = it821x_error_handler,
681 .error_handler = ata_bmdma_error_handler,
706 .post_internal_cmd = ata_bmdma_post_internal_cmd,
682 .post_internal_cmd = ata_bmdma_post_internal_cmd,
683 .cable_detect = ata_cable_unknown,
707
708 .bmdma_setup = ata_bmdma_setup,
709 .bmdma_start = it821x_passthru_bmdma_start,
710 .bmdma_stop = it821x_passthru_bmdma_stop,
711 .bmdma_status = ata_bmdma_status,
712
713 .qc_prep = ata_qc_prep,
714 .qc_issue = it821x_passthru_qc_issue_prot,

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685 .bmdma_setup = ata_bmdma_setup,
686 .bmdma_start = it821x_passthru_bmdma_start,
687 .bmdma_stop = it821x_passthru_bmdma_stop,
688 .bmdma_status = ata_bmdma_status,
689
690 .qc_prep = ata_qc_prep,
691 .qc_issue = it821x_passthru_qc_issue_prot,

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