2 * H8/300 generic IDE interface
5 #include <linux/init.h>
11 #define DRV_NAME "ide-h8300"
16 __asm__("mov.b %w1,r1h\n\t" \
25 static void h8300_tf_load(ide_drive_t
*drive
, struct ide_cmd
*cmd
)
27 ide_hwif_t
*hwif
= drive
->hwif
;
28 struct ide_io_ports
*io_ports
= &hwif
->io_ports
;
29 struct ide_taskfile
*tf
= &cmd
->tf
;
30 u8 HIHI
= (cmd
->tf_flags
& IDE_TFLAG_LBA48
) ? 0xE0 : 0xEF;
32 if (cmd
->ftf_flags
& IDE_FTFLAG_FLAGGED
)
35 if (cmd
->tf_flags
& IDE_TFLAG_OUT_HOB_FEATURE
)
36 outb(tf
->hob_feature
, io_ports
->feature_addr
);
37 if (cmd
->tf_flags
& IDE_TFLAG_OUT_HOB_NSECT
)
38 outb(tf
->hob_nsect
, io_ports
->nsect_addr
);
39 if (cmd
->tf_flags
& IDE_TFLAG_OUT_HOB_LBAL
)
40 outb(tf
->hob_lbal
, io_ports
->lbal_addr
);
41 if (cmd
->tf_flags
& IDE_TFLAG_OUT_HOB_LBAM
)
42 outb(tf
->hob_lbam
, io_ports
->lbam_addr
);
43 if (cmd
->tf_flags
& IDE_TFLAG_OUT_HOB_LBAH
)
44 outb(tf
->hob_lbah
, io_ports
->lbah_addr
);
46 if (cmd
->tf_flags
& IDE_TFLAG_OUT_FEATURE
)
47 outb(tf
->feature
, io_ports
->feature_addr
);
48 if (cmd
->tf_flags
& IDE_TFLAG_OUT_NSECT
)
49 outb(tf
->nsect
, io_ports
->nsect_addr
);
50 if (cmd
->tf_flags
& IDE_TFLAG_OUT_LBAL
)
51 outb(tf
->lbal
, io_ports
->lbal_addr
);
52 if (cmd
->tf_flags
& IDE_TFLAG_OUT_LBAM
)
53 outb(tf
->lbam
, io_ports
->lbam_addr
);
54 if (cmd
->tf_flags
& IDE_TFLAG_OUT_LBAH
)
55 outb(tf
->lbah
, io_ports
->lbah_addr
);
57 if (cmd
->tf_flags
& IDE_TFLAG_OUT_DEVICE
)
58 outb((tf
->device
& HIHI
) | drive
->select
,
59 io_ports
->device_addr
);
62 static void h8300_tf_read(ide_drive_t
*drive
, struct ide_cmd
*cmd
)
64 ide_hwif_t
*hwif
= drive
->hwif
;
65 struct ide_io_ports
*io_ports
= &hwif
->io_ports
;
66 struct ide_taskfile
*tf
= &cmd
->tf
;
68 /* be sure we're looking at the low order bits */
69 outb(ATA_DEVCTL_OBS
, io_ports
->ctl_addr
);
71 if (cmd
->tf_flags
& IDE_TFLAG_IN_ERROR
)
72 tf
->error
= inb(io_ports
->feature_addr
);
73 if (cmd
->tf_flags
& IDE_TFLAG_IN_NSECT
)
74 tf
->nsect
= inb(io_ports
->nsect_addr
);
75 if (cmd
->tf_flags
& IDE_TFLAG_IN_LBAL
)
76 tf
->lbal
= inb(io_ports
->lbal_addr
);
77 if (cmd
->tf_flags
& IDE_TFLAG_IN_LBAM
)
78 tf
->lbam
= inb(io_ports
->lbam_addr
);
79 if (cmd
->tf_flags
& IDE_TFLAG_IN_LBAH
)
80 tf
->lbah
= inb(io_ports
->lbah_addr
);
81 if (cmd
->tf_flags
& IDE_TFLAG_IN_DEVICE
)
82 tf
->device
= inb(io_ports
->device_addr
);
84 if (cmd
->tf_flags
& IDE_TFLAG_LBA48
) {
85 outb(ATA_HOB
| ATA_DEVCTL_OBS
, io_ports
->ctl_addr
);
87 if (cmd
->tf_flags
& IDE_TFLAG_IN_HOB_ERROR
)
88 tf
->hob_error
= inb(io_ports
->feature_addr
);
89 if (cmd
->tf_flags
& IDE_TFLAG_IN_HOB_NSECT
)
90 tf
->hob_nsect
= inb(io_ports
->nsect_addr
);
91 if (cmd
->tf_flags
& IDE_TFLAG_IN_HOB_LBAL
)
92 tf
->hob_lbal
= inb(io_ports
->lbal_addr
);
93 if (cmd
->tf_flags
& IDE_TFLAG_IN_HOB_LBAM
)
94 tf
->hob_lbam
= inb(io_ports
->lbam_addr
);
95 if (cmd
->tf_flags
& IDE_TFLAG_IN_HOB_LBAH
)
96 tf
->hob_lbah
= inb(io_ports
->lbah_addr
);
100 static void mm_outsw(unsigned long addr
, void *buf
, u32 len
)
102 unsigned short *bp
= (unsigned short *)buf
;
103 for (; len
> 0; len
--, bp
++)
104 *(volatile u16
*)addr
= bswap(*bp
);
107 static void mm_insw(unsigned long addr
, void *buf
, u32 len
)
109 unsigned short *bp
= (unsigned short *)buf
;
110 for (; len
> 0; len
--, bp
++)
111 *bp
= bswap(*(volatile u16
*)addr
);
114 static void h8300_input_data(ide_drive_t
*drive
, struct ide_cmd
*cmd
,
115 void *buf
, unsigned int len
)
117 mm_insw(drive
->hwif
->io_ports
.data_addr
, buf
, (len
+ 1) / 2);
120 static void h8300_output_data(ide_drive_t
*drive
, struct ide_cmd
*cmd
,
121 void *buf
, unsigned int len
)
123 mm_outsw(drive
->hwif
->io_ports
.data_addr
, buf
, (len
+ 1) / 2);
126 static const struct ide_tp_ops h8300_tp_ops
= {
127 .exec_command
= ide_exec_command
,
128 .read_status
= ide_read_status
,
129 .read_altstatus
= ide_read_altstatus
,
130 .write_devctl
= ide_write_devctl
,
132 .dev_select
= ide_dev_select
,
133 .tf_load
= h8300_tf_load
,
134 .tf_read
= h8300_tf_read
,
136 .input_data
= h8300_input_data
,
137 .output_data
= h8300_output_data
,
140 #define H8300_IDE_GAP (2)
142 static inline void hw_setup(hw_regs_t
*hw
)
146 memset(hw
, 0, sizeof(hw_regs_t
));
147 for (i
= 0; i
<= 7; i
++)
148 hw
->io_ports_array
[i
] = CONFIG_H8300_IDE_BASE
+ H8300_IDE_GAP
*i
;
149 hw
->io_ports
.ctl_addr
= CONFIG_H8300_IDE_ALT
;
150 hw
->irq
= EXT_IRQ0
+ CONFIG_H8300_IDE_IRQ
;
151 hw
->chipset
= ide_generic
;
154 static const struct ide_port_info h8300_port_info
= {
155 .tp_ops
= &h8300_tp_ops
,
156 .host_flags
= IDE_HFLAG_NO_IO_32BIT
| IDE_HFLAG_NO_DMA
,
159 static int __init
h8300_ide_init(void)
161 hw_regs_t hw
, *hws
[] = { &hw
, NULL
, NULL
, NULL
};
163 printk(KERN_INFO DRV_NAME
": H8/300 generic IDE interface\n");
165 if (!request_region(CONFIG_H8300_IDE_BASE
, H8300_IDE_GAP
*8, "ide-h8300"))
167 if (!request_region(CONFIG_H8300_IDE_ALT
, H8300_IDE_GAP
, "ide-h8300")) {
168 release_region(CONFIG_H8300_IDE_BASE
, H8300_IDE_GAP
*8);
174 return ide_host_add(&h8300_port_info
, hws
, NULL
);
177 printk(KERN_ERR
"ide-h8300: IDE I/F resource already used.\n");
182 module_init(h8300_ide_init
);
184 MODULE_LICENSE("GPL");