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path: root/drivers/ide/ide-io-std.c
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Diffstat (limited to 'drivers/ide/ide-io-std.c')
-rw-r--r--drivers/ide/ide-io-std.c75
1 files changed, 17 insertions, 58 deletions
diff --git a/drivers/ide/ide-io-std.c b/drivers/ide/ide-io-std.c
index 9cac281d82c4..46721c454518 100644
--- a/drivers/ide/ide-io-std.c
+++ b/drivers/ide/ide-io-std.c
@@ -85,98 +85,57 @@ void ide_dev_select(ide_drive_t *drive)
85} 85}
86EXPORT_SYMBOL_GPL(ide_dev_select); 86EXPORT_SYMBOL_GPL(ide_dev_select);
87 87
88void ide_tf_load(ide_drive_t *drive, struct ide_cmd *cmd) 88void ide_tf_load(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid)
89{ 89{
90 ide_hwif_t *hwif = drive->hwif; 90 ide_hwif_t *hwif = drive->hwif;
91 struct ide_io_ports *io_ports = &hwif->io_ports; 91 struct ide_io_ports *io_ports = &hwif->io_ports;
92 struct ide_taskfile *tf = &cmd->tf;
93 void (*tf_outb)(u8 addr, unsigned long port); 92 void (*tf_outb)(u8 addr, unsigned long port);
94 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; 93 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
95 u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
96 94
97 if (mmio) 95 if (mmio)
98 tf_outb = ide_mm_outb; 96 tf_outb = ide_mm_outb;
99 else 97 else
100 tf_outb = ide_outb; 98 tf_outb = ide_outb;
101 99
102 if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED) 100 if (valid & IDE_VALID_FEATURE)
103 HIHI = 0xFF;
104
105 if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
106 tf_outb(tf->hob_feature, io_ports->feature_addr);
107 if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
108 tf_outb(tf->hob_nsect, io_ports->nsect_addr);
109 if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
110 tf_outb(tf->hob_lbal, io_ports->lbal_addr);
111 if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
112 tf_outb(tf->hob_lbam, io_ports->lbam_addr);
113 if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
114 tf_outb(tf->hob_lbah, io_ports->lbah_addr);
115
116 if (cmd->tf_flags & IDE_TFLAG_OUT_FEATURE)
117 tf_outb(tf->feature, io_ports->feature_addr); 101 tf_outb(tf->feature, io_ports->feature_addr);
118 if (cmd->tf_flags & IDE_TFLAG_OUT_NSECT) 102 if (valid & IDE_VALID_NSECT)
119 tf_outb(tf->nsect, io_ports->nsect_addr); 103 tf_outb(tf->nsect, io_ports->nsect_addr);
120 if (cmd->tf_flags & IDE_TFLAG_OUT_LBAL) 104 if (valid & IDE_VALID_LBAL)
121 tf_outb(tf->lbal, io_ports->lbal_addr); 105 tf_outb(tf->lbal, io_ports->lbal_addr);
122 if (cmd->tf_flags & IDE_TFLAG_OUT_LBAM) 106 if (valid & IDE_VALID_LBAM)
123 tf_outb(tf->lbam, io_ports->lbam_addr); 107 tf_outb(tf->lbam, io_ports->lbam_addr);
124 if (cmd->tf_flags & IDE_TFLAG_OUT_LBAH) 108 if (valid & IDE_VALID_LBAH)
125 tf_outb(tf->lbah, io_ports->lbah_addr); 109 tf_outb(tf->lbah, io_ports->lbah_addr);
126 110 if (valid & IDE_VALID_DEVICE)
127 if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE) 111 tf_outb(tf->device, io_ports->device_addr);
128 tf_outb((tf->device & HIHI) | drive->select,
129 io_ports->device_addr);
130} 112}
131EXPORT_SYMBOL_GPL(ide_tf_load); 113EXPORT_SYMBOL_GPL(ide_tf_load);
132 114
133void ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd) 115void ide_tf_read(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid)
134{ 116{
135 ide_hwif_t *hwif = drive->hwif; 117 ide_hwif_t *hwif = drive->hwif;
136 struct ide_io_ports *io_ports = &hwif->io_ports; 118 struct ide_io_ports *io_ports = &hwif->io_ports;
137 struct ide_taskfile *tf = &cmd->tf;
138 void (*tf_outb)(u8 addr, unsigned long port);
139 u8 (*tf_inb)(unsigned long port); 119 u8 (*tf_inb)(unsigned long port);
140 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; 120 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
141 121
142 if (mmio) { 122 if (mmio)
143 tf_outb = ide_mm_outb;
144 tf_inb = ide_mm_inb; 123 tf_inb = ide_mm_inb;
145 } else { 124 else
146 tf_outb = ide_outb;
147 tf_inb = ide_inb; 125 tf_inb = ide_inb;
148 }
149
150 /* be sure we're looking at the low order bits */
151 tf_outb(ATA_DEVCTL_OBS, io_ports->ctl_addr);
152 126
153 if (cmd->tf_flags & IDE_TFLAG_IN_ERROR) 127 if (valid & IDE_VALID_ERROR)
154 tf->error = tf_inb(io_ports->feature_addr); 128 tf->error = tf_inb(io_ports->feature_addr);
155 if (cmd->tf_flags & IDE_TFLAG_IN_NSECT) 129 if (valid & IDE_VALID_NSECT)
156 tf->nsect = tf_inb(io_ports->nsect_addr); 130 tf->nsect = tf_inb(io_ports->nsect_addr);
157 if (cmd->tf_flags & IDE_TFLAG_IN_LBAL) 131 if (valid & IDE_VALID_LBAL)
158 tf->lbal = tf_inb(io_ports->lbal_addr); 132 tf->lbal = tf_inb(io_ports->lbal_addr);
159 if (cmd->tf_flags & IDE_TFLAG_IN_LBAM) 133 if (valid & IDE_VALID_LBAM)
160 tf->lbam = tf_inb(io_ports->lbam_addr); 134 tf->lbam = tf_inb(io_ports->lbam_addr);
161 if (cmd->tf_flags & IDE_TFLAG_IN_LBAH) 135 if (valid & IDE_VALID_LBAH)
162 tf->lbah = tf_inb(io_ports->lbah_addr); 136 tf->lbah = tf_inb(io_ports->lbah_addr);
163 if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE) 137 if (valid & IDE_VALID_DEVICE)
164 tf->device = tf_inb(io_ports->device_addr); 138 tf->device = tf_inb(io_ports->device_addr);
165
166 if (cmd->tf_flags & IDE_TFLAG_LBA48) {
167 tf_outb(ATA_HOB | ATA_DEVCTL_OBS, io_ports->ctl_addr);
168
169 if (cmd->tf_flags & IDE_TFLAG_IN_HOB_ERROR)
170 tf->hob_error = tf_inb(io_ports->feature_addr);
171 if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
172 tf->hob_nsect = tf_inb(io_ports->nsect_addr);
173 if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
174 tf->hob_lbal = tf_inb(io_ports->lbal_addr);
175 if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
176 tf->hob_lbam = tf_inb(io_ports->lbam_addr);
177 if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
178 tf->hob_lbah = tf_inb(io_ports->lbah_addr);
179 }
180} 139}
181EXPORT_SYMBOL_GPL(ide_tf_read); 140EXPORT_SYMBOL_GPL(ide_tf_read);
182 141